I'm lucky enough to have a girlfriend offering to buy an iMac 27 for my birthday. The thing is I already have a MPB 13" and would rather have an ACD 27 to use with my MBP. The current ACD 24 is too small for my needs. The ACD 30" is outdated and doesn't work well with the Mini DP to DVI adapter. What do you guys think? How much cheaper the ACD 27 would be compared to the base iMac 27? Any "guesstimate" on when the ACD 27 would be out?