Desktop P4 w/1 Mb RAM and 128Mb graphics card runs W7 (32) beautifully for the typical word processing, browser, light graphic editing and financial programs that I use. Most have been unchanged for years and may not run well - if at all - on 64-bit architecture. I am not a gamer, movie maker or downloader, nor a CADesigner. While upgrading to an I-860 class system would certainly pep up performance for high-res streaming video, the programs that I run are unlikely to utilize newer technologies. "HD" 720-res video downloads and plays well. Slowdowns are more a problem of limited bandwidth than with the PC limitations. In your opinion, what's to be gained by shelling out bucks, and going through the arduous task of reconfiguring and replacing software that might no longer function - only to wind up with a system that, while slightly peppier, does little more than the present one?