http://www.ebay.com/itm/iMac-27in-L...2648242?pt=Apple_Desktops&hash=item3f202b4cb2 Is a trackpad better for a larger screen? I have never considered this before, or what the advantages may be. (See selling point in linked listing--not mine--and try to ignore the price!) [I happily have a 27" on order with a trackpad (mainly to help deal with CTS), and will be my first Mac since my old G4.] Thanks for your opinions and advice!