Hey Sassafrass. www.canadacomputers.com
I don't know exactly where you are but these guys are the best in Toronto that I have found. They are located in Markham, Toronto, Mississauga and a few other locations. Very rare to find someone to beat them. AMD makes a more stable cpu than Intel does. I've had them both and now all 8 of my computers have AMD cpus. If you can give me an actual number figure of what you want to spend I will set you up.
Cheap but good.
AMD Mobile 2500+
DFI Lanparty Motherboard
OCZ 2x512 Dual Channel Ram
WD HD (Depending on how much memory and money. I'd go SATA)
Sapphire Radeon 9600 is decent enough
And the rest just depends on money.