I've been enjoying my 15" Powerbook G4 since summer of '04, but I'm finally feeling the urge to upgrade. The only complaint I've had with my Mac in the last 4 years is its inability to play games. After following every detail of the new MBPs, I'm left rather unimpressed. Would now be a good time to consider buying one of the more recent MBPs from the clearance or refurb store? After doing some more research, I've realized that they should be perfectly capable of playing the games I'm interested in (MMOs, nothing like Crysis). Should I wait until my current Powerbook finally bites the dust? Should I stick with my Powerbook and find a desktop solution to compliment it? I feel a little silly replacing my powerbook when it does almost everything I need so well. If I buy a MBP, I no longer have any utility from this baby. So many thoughts. Looking for some advice and inspiration.