I just bought the entry level Macbook Pro 13" for its portability as I already have an Imac for home use. I also want to use the MBP at work in conjunction with a 20" or larger external monitor. My question is: Does the 13" have a limitation when used with a larger external monitor (as opposed to the 15 and 17")? I've read through the forums and found some people having issues with images not being crisp on the external monitors. My ideal setup would be to keep the MBP open for the tool palettes and use the external monitor for the graphics. Does anyone have recommendations on a good setup? I will mostly be using CS5 for print and web graphics. So far, I have been leaning toward a used Apple Cinema display or one of the Dells. Thanks a lot for any advice!