Plan to duel boot windows 7 and Ubuntu from a 120gb ssd. What's a good amout of space to allocate? I have 8 gigs of ram and would like to hibernate, but I could go without it.. I have plenty of space on a regular boring hard drive for the parts that don't need ssd speed
Well , minimum requirement is 15GB , and since you said you have lot of available space, you can go with 30-40 GB(20 GB for root and remaining for /home partition). Create multiple partitions so that you can give it to either windows/Linux depending on your requirement.