Once you have the hard drive plugged in, does /dev/sda1 or /dev/sdb1 appear? Type "ls /dev/sd*" to see. If not, try System Rescue CD http://www.sysresccd.org/Main_Page
. If it does, just mount it with "mount /dev/sda1 (for example) /mnt/choose-a-folder/". I wouldn't think there would be any limitations with hard drive sizes.