My main machine crapped out in February with a hard drive crash, and I'm now on an older (c. 2006) HP running Windows XP and only 2 gig ram. I'm going to have to start saving up for a new machine, and will likely wind up buying through Office Max, as they have a store close by and I usually buy computer related supplies there. I've used HP, Asus, and Acer in the past, but have no idea what's considered a good brand these days. Based on what the crapped out machine had, I'm going to want at least 4 gig ram and 600 gig on a hard drive. Money is a scarce commodity for me though, so it will probably have to be something around $500. I primarily use computers for internet and 3d modeling/animation software. I do not want a laptop. Any recommendations?