Personally, I'd like to see you in a nitro plane and to keep the cost down (which appears to be an issue with you) I'd say the following would be a good start. It is also a very good trainer that I'd recommend to someone not on a tight budget.
http://www2.towerhobbies.com/cgi-bin...&I=LXCAS2&P=ML
and
http://www2.towerhobbies.com/cgi-bin...?&I=LXGGV7&P=0
You would also need to purchase a throttle servo. Make sure your other servos are "standard" and not smaller so they will have enough power.
The SIG KADET EP-42 is also a nice little electric plane I've seen lately but it will cost about as mush as the plane above.

I really lean to nitro myself so I am admittedly biased, sorry about that but at least I admit it.