Hello, Wedding season is killing me on my powerbook g4. I have put my money towards lenses, but I have a ton of weddings in september and I don't want to be a week late delivering my product anymore. So I am deciding between new imac vs 17" mpb. 20-24" Imac= I have a desktop that is less likely to breakdown because it stays in one place. Bigger screen so I can do more while I am editing. Also if I go the imac route I will wait for the new ones that might come out in august. I have made it this far on this machine, I can wait a little longer for the revision. I would buy new. I would continue to use my 15" for sales meetings, and back up computer while the imac is doing large tasks. or 17" MBP= SEXY! More impressive piece of equipment for sales meetings, (I know the photos count more!-brighter screen and bigger images is really important though.) I use this as my main machine and only machine and give my mom my current powerbook. If my 17" breaks down, I can always go over to moms and use it if I need to. With in 1-2 years I purchase a mac pro or Imac as my main machine and the 17" becomes my travel/sales machine. I have my first destination wedding in august and I feel there will be more of those in coming years and a more powerful laptop will be extremely useful. I would buy refurbed, and hope that SR refurbs hit the market in august. What do you think?