Rath Darkblade wrote:Sorry, DPX - I couldn't find the original ad at the time. The place is called "Budget PC", a computer store in Melbourne. Their website is
http://www.budgetpc.com.au . *checks it out* Hmm... wow - it looks like the prices I quoted have been reduced even further - up to even 20% off. That's great!

You're going to buy a computer from a place called "Budget PC"? I'd find out the brand and model of the components. Maybe I'm wrong, but an operation like that might use the cheapest parts available.
Rath Darkblade wrote:The only two things I'm still a little wary about are software... Windows 7 and MS Office. I mean... if I need to re-install Windows 7, for whatever reason, obviously I'll need the disc. Would they give me a disc? Or maybe the factory drivers for the hardware? etc.?
Most companies will give you a system restore disc. All that does is reinstall Windows for you, setting your machine back to factory conditions (i.e. how it was when you bought it).
I've found system restore discs to be quite useful in the past. Some people might want the individual Windows disc, but in the end there's very little difference. Since I have a two-year warranty with Dell, I got the, to give me BOTH a system restore disc and a Windows 7 Professional disc. You may not be able to do that, but it's worth trying.
Rath Darkblade wrote:Also, the computer itself comes with Windows 7 Home and Norton Anti-Virus, apparently. I'm not sure if I should insist on an upgrade to Win7 Home Premium or Win7 Professional - if I do, it costs an extra $127 or $172, respectively. If I also want Office 2010 Home, that costs an extra $149. Any thoughts?

Windows 7 Home Basic? It shouldn't have that as Home Basic isn't available in first world countries, which includes Australia. Home Basic is sold in what's called an "emerging market." That version even includes geographical activation restrictions.
Windows 7 Starter exists here and like Collector said, don't get it. It's a bare bones OS and not worth it at all. Home Premium and Professional are the next steps up.
As far as Office 2010 is concerned, I'd spend the extra money. I've been using it on my laptop (Win7 Pro) and it's fantastic. I have the "Office 2010 Home and Student" version, which includes Word, Excel, PowerPoint and One Note. I never use Access, so I don't care if that's missing. If I desperately felt the need to install Access, I have the Office 2000 version.
I completely agree with Collector on Norton Anti-Virus. If you want a good virus scanner, try Avast! I use it and really like it. It's also free, although there are pay versions. Unless you don't have a firewall (preferably the hardware variety) and don't bother with email filters, you don't need the pay editions.
Collector wrote:I would not look for any games to utilize more that 2 cores. It is hard to program multi threaded apps. The more thread the harder. I am not sure how much advantage it would provide, anyway. The biggest load for a modern game is the graphics. The current motherboards support up to three graphics cards working in tandem via SLI or Crossfire that can share the graphics load. A quad core may be useful for multitasking.
Games do, in a sense, take advantage of multiple cores. The game itself doesn't use both cores, but having a dual core means the PC can dedicate one core to the game and the other to managing background tasks.
Maia has a dual core and I have a single core. My processor's clock speed is much faster than hers, but because she has a dual core, she can play games with less slow down than I have. In some games the difference is negligible, but in others it can be quite noticeable.
My P4 3.6GHz processor is six years old. The fact it can run games released in 2010 is impressive. For the most part, I don't need to reduce graphics settings and my frame rate is quite good. However, there have been a few games that have just demanded too much. I believe a dual core would've come in handy in those situations.
How the game is developed also makes a difference. For instance... the original
Mass Effect ran terribly on my machine, whereas
Mass Effect 2 runs fantastic. That shouldn't be the case, as ME2 requires more out of a PC in every way, but it still works a lot better than the first game.