I've been thinking of buying a graphics tablet to use with CS4. I have an old tiny 1st generation WACOM one that I got many years ago, but it's really a toy and I'd like one that really is functional. Never having really used one of these for photo-editing, are they really worthwhile? What size do I need? Recommendations for a particular tablet would be welcome. Do I need to spend an arm and a leg to make it worth the investment? What features should I look for? Thanks.