If you're looking for boats,
Offshore is the place for you! I have bought a number of things from them, and they are great to deal with.
I own a Villain IVX, which is a Traxxas Villain IV upgraded to EX specs. It is a really nice boat, but the one thing I don't like about it is that I can't put a brushless motor in it. It requires two motors, unless I do some serious modifications, in which will make it severely unstable. Right now, it is plenty fast enough for me. I have E-Maxx Titans in it with Carbon fiber propellers, 5s A123, and soon to come, as waterproof box, like the EX has. The stupid ESC has gone out on me again, so I'll have to send it in when I get time and money. I plan to put my turn fins back on, as I think they help keep the boat more stable at speed, even though they don't really prevent spin-outs, as they are too small.
If you're looking for speed, then you'll want a Hydroplane. They are very good looking boats, but don't do very well in choppy water, and can't turn left very well. If you plan to run in choppy water, then you'll want a deep V hull, like the Villain EX. I have been thinking about getting a Nitro Vee hull and putting a brushless motor in it. You could consider that.
Good luck,
Brijar!!!