I currently use a last gen 20" white iMac (matte screen), an old G3 Power PC (CRT monitor) and a Windows PC (matte display)for Photoshop. I am considering replacing the PC with a new 24" iMac but have a few concerns.... 1) The glossy screen. Is it distracting and reflective? Are the colors true? Is it too contrasty? 2) Performance with Photoshop? The white iMac sometimes seems to hang on me. Granted, I probably don't have enough RAM in it (is this RAM compatible with this year's 24" iMac?), but still, I haven't really pushed it either. 3) I'm reading here about possible upgrades, most important being LED displays. Would that be such a big improvement over the current display? For tax purposes, I would like to get the new computer this year, but if the changes are expected to be huge.... I just don't know!