You can read my review of the Swift Maxi/Robbe Hydrasnake here :
http://www.rcuniverse.com/forum/m_10079144/tm.htm
You can get this as a RTF kit, but without a radio I think, but it is worth to takethe hassle to buy a RX set.
[youtube]http://www.youtube.com/watch?v=jhGBUQZaQ4Q[/youtube]