heck i am not really happy with the 120gb HDD that i have ( granted it holds more ) but you can fill one real fast, and its like not having enough. its allot better then a smaller size but in this day allot more storage is better.

tiger will run on 128mb ram, but is not recommended to do, tiger can choke real easy on a system with only 128mb ram ( allot of disk swapping action).

like Cory said the more you give tiger the happier it will be and allot less frustrated you will be with it.