I just built a comp myself, and I know for a fact I saved at least $300ish over buying a pre-built one. I checked out the prices from cyberpower too. The only way the price would of been comparable, was if I had bought an open box pc, which would of maybe saved me $100 or so. Use the shell shocker deals form newegg, or look for coupons on
http://www.techbargains.com/newegg_coupons.cfm. I'm 100 percent positive you can save some $ building, and as the other guy said, its also fun to build it yourself.