I did a quick search and didn't seem to find anything relevant here so i'll post . My Dell laptop from 2001 has been serving as my HTPC and while it looks great to have a PC on a 46" Samsung, it just doesnt perform. Streaming Pictures/movies from my iMac (2.8GHz i7) to this laptop has been horrible! Too choppy and embarrassing to show friends and family. Playing HD video on the Mac Mini (Core2Duo 2.66 w/ Nvidia 320M) in the Apple store was OK but nothing to write home about. If I spend the money on another Mac I want to make sure that it will play back all the HD video I can throw at it while still fitting in my entertainment center. Do you think it would be advisable to be get a 21.5" iMac 3.6GHz i5 with the ATI Radeon HD 5670; take the stand off of it and leave it behind my center channel? Advice needed. Thanks!