Most people will recomend the hobbyzone super cub. It's no rocket, but you can have a good time and it will teach you the basics. The first link is to the super cub.
http://www.hobbyzone.com/rc_planes_h..._super_cub.htm
This here is a thread that was made just for the super cub. It's very active and I'm sure the people there would be happy to help you out should you need any assistance.
http://www.rcuniverse.com/forum/m_43...r%2Ccub/tm.htm
This here is a site that has tons of tips and mods for the super cub. Be sure to check this one out.
http://supercubclub.proboards78.com/index.cgi
There are lots of other planes out there that are great for beginners, so be sure to look around.
Good luck,
Austin