Hi Guys, I'm in the market for a new computer and I am considering either the 15" i7 MacBook Pro or the 27" i7 iMac. I am currently using a 12" 1.3Ghz PowerBook G4 and I think a new faster computer will be a welcomed change. I want a fast computer that will last several years (4+). I also don't mind paying extra to get it. I was configuring a 27" iMac on Apple.com and noticed that for $750 you can add an additional SSD (1TB Serial ATA Drive + 256GB Solid State Drive). My question to you is do you think the extra SSD will deliver improved performance? Better I/O? If so, would the improvements be noticeable or significant? Thanks in advance!