If your on the fence about upgrading to the i5/i7 mbp, all I have to say is JUST DO IT(sorry I'm not trying to get sued by NIKE or anything!). Its one of the best upgrades I've done in a LONG time. I can honestly say you will be very happy that you did, its finally a TRUE desktop replacement machine. I've owned all the mbp 13", 15", 17" ever since its first switch to intel (also owned the last gen 17" 1.67ghz powerbook g4) and owned all the Mac Pro desktops since the 4 core 2.66GHz, 2.8GHz 8 core and the 2.26GHz Nehalem and I have to say this machine feels like a real desktop! To give you the best description, I have my 17" i7 plugged into my 24" LED ACD and while its tucked away to the side, I forget at times that its not connected a Mac Pro! I know the SSD is helpful there but I've had this SSD for a while and it does not feel the same as it did on my 2.8ghz core 2 duo machine. Finally a macbook pro that feels like a legit desktop replacement!