My current budget is 800$, but I could probably add 200$ if I have to. I can probably provide my own peripherals (monitor, keyboard, mouse). The only problem would be acquiring a legit copy of Windows 7 (I'll probably just pirate it if I can't find a discount on them). I also have thermal paste and a toolkit.
I'm probably going to go for an Asus Sabertooth motherboard. I'll go with AMD if I can't find a cheap Sandy Bridge i5 processor. I may want an SSD for the faster boot time, but I don't know if I'll be satisfied with the storage capacity. I like Cooler Master cases, but I don't care as long as it looks cool. As for the other components, I don't know.