When you are buying a PC for casual home use brand really doesn't matter too much. The companies that produce the components you would use in a PC you build yourself are the same companies that build parts for Dell and the other large OEMs.
This is a nice little system, an AMD proccessor with an Nvidia based motheboard.
http://pc.ncix.com/ncixpc/ncixpc.cfm...41C926-1000611
Jump the RAM up to 1GB and you should be pretty happy. It will run most games well enough but you won't end up spending big $ on hardware you don't really need.