I would definitely have to agree with GMAC in paying attention to size constraints, but with that being said, you can get around a slightly tight space if you think its worth it to be able to practice on a full size table (as was my personal opinion)
The mechanics that installed my table said they rarely encounter a perfect space for a 9 footer when they do their installations. Everone is working with some sort of strange corner or support beam somewhere. I personally have a couple funny spots on my table, but I think its worth it to have the big track.
As far as tables, we would all like a diamond, Gabriel, or GC5, but if you want a real nice table for the money, I would try to sniff out a Gold Crown 3, (they're usually pretty plentiful as they were the table of choice in most of the pool halls that sadly are now closing). I picked mine up for 1400 installed with simonis 860 and 4.5 inch pockets at the corners. Make sure you have the pockets attended to if you get one of these, they came stock with monster buckets that wont help you improve much.
Anyway, my two cents here, but for the money a properly set up GC3 is pretty tough to beat.