While at SXSW, I received a demo of the Dell Studio One 19 Desktop. What I like about this line is that there is a multi-touch option (comes with a keyboard as well) that would make it a good choice for a kitchen or family room PC. Because the system is an all-in-one it also is a spacesaver. The system I saw also has Cozi.com Family Calendering system loaded. The starting price of $699 is friendly on the budget. Listed below are some specifications from the Dell press release.
Software from Dell: