I would very strongly suggest that you buy a graphics card. At least an nvidia 8400gt or an 8600gt. They should cost less than 3k. The onboard graphics will run most games but will be incapable of giving even a 10th of the performance of a dedicated card. An 8600gt will easily allow you to run games like far cry at 1024x768 and high settings. Also, an intel processor for the same price will usually give you better performance than an amd, but take amd if budget is a serious concern as the performance difference will not be that noticeable to most people. By itself, the above suggested config is sufficient for watching hd movies and general pc usage.
Samsung dvd writer will come for rs700.
Also, why the insistance for a crt? Granted they have better image quality and refresh rates, but you can get widescreen lcds at the same price. They occupy less space, consume less power, look better and have very good image quality anyway.