I have the smaller Go Baby and enjoy it, but bigger is better. Check here for prices:
http://www.quilting-warehouse.com/ and amazon
http://www.amazon.com/s/ref=nb_sb_no...accuquilt%20go
There are other places where you can purchase it and I'm sure others will chime in. Also, do a quick search here and you can find lots of information plus there is a yahoo group for it.
You can definitely get it cheaper than the $299-349 Joann's price, although I have seen them on sale there for $199.