Package from Tower:
Radio (includes 2 servos and Rx) $100:
http://www2.towerhobbies.com/cgi-bin...=LXGAE8**&P=ML
SS $32
http://www2.towerhobbies.com/cgi-bin...&I=LXHCJ1&P=ML
Battery $9 to $14 (you'll want at least two):
http://www2.towerhobbies.com/cgi-bin...?&I=LXGBN0&P=7
or
http://www2.towerhobbies.com/cgi-bin...?&I=LXHHU5&P=7
Speed control $10:
http://www2.towerhobbies.com/cgi-bin...?&I=LXHUZ0&P=7
Charger $30
http://www2.towerhobbies.com/cgi-bin...?&I=LXCJE2&P=7
These will do, and will get you a system or about the same cost as a Slo-V ($15 off an order of $150, $25 off $200), and, unlike the Slo-V, has electronics that will easily move into other planes without being locked into the Parkzone proprietary system.
If you have more $$$, I'd suggest upgrading the Radio to at least a radio that has 6 channels and dual rates, and getting a charger, like the Triton, which will accept all batteries.
Get some extra props (11x8) and prop shafts and maybe one extra gearbox. Tower sells the GWS props, but not the shafts gearboxes.