I trolled around Newegg looking for upper-middle tier components with a higher quantity of good reviews. A lot of the times you won't see a lot of the recently released stuff with useful reviews, so some of the parts were actually circa 2009'ish instead of being latest and greatest (2010).
I didn't splurge for a super expensive case, and my power supply wasn't modular (making it pretty cheap). i7 with a decent mobo. Went AMD for the GPU since (at the time) they were the best bang for buck. Got some cheaper G.SKILL 1600mhz DDR3 RAM (which has worked awesomely for me) for next to nothing, and I was ready to roll.