I would strongly recommend getting seperate chips for everyhting.. mobo seperate from vid card, sound card, etc.. cause what companies tend to do is build their onboard cards in such a way that if you want to get an upgrade you would have to go through them.. I have had very bad experiences with this and my compaq..
not sure if the company your talking about would do this, but i wouldnt take the risk since its at the same price range anway.
_P4 Northwood 2.8C Ghz HT
_Kingston 512 DDR400 Ram [2x 256]
_Awesome looking white plain case with cool green and red power/HD lights, and a newely acquired Intel P4 sticker!