If you aren't going to do any 3D rendering or games you'll be fine. If you want full support for Vista, it'd be a good idea to get a decent card. Honestly though, even the Intel 950 will be fine for Vista if you don't care about the eye candy.
P.S. You'll probably save money by getting the minimum ram on the dell (like 2 256's for example) and buying an upgrade off newegg, check it out before purchasing, it just might save you half of that $200!