Yeh, I'm going to have to make the PC set-up a little more expensive with an Nvidia card and a compatable sound card..As I was planning to go with integration on both parts...But I've been told off for thinking that would work - Which makes sense, because it's hard to keep up with all these integrated graphics cards I suppose..Although sound I would of thought would of been able to jump through a loophole.
Thanks for the help guys, and a big thank you for those links - They shall prove VERY useful and hopefully will prevent me from suffering from unsupported hardware woes!
I also decided to go for an AMD Athlon 64 2800+, as I found one that's at a decent price in a computer shop near mine...$80 not bad eh! (I also had to change the motherboard and RAM type round though, which wasn't a costly swap).
Ok, thanks again guys!