A number of GWS kits are quite good for indoor flight. The GWS Pico Moth, Pico Stick, Pico J3 Cub, and Slow Stick are all terrific indoor flyers. If you fly the Pico Tiger Moth, however, you should check around for a set of wooden wing struts as the plastic struts included with the ARF are too flimsy. The folks at www.allerc.com sell a set of wooden struts for $7.50 or so, but they pop on on EBay and here on RCU from time to time as well.

The Parkzone Slo-V can fly indoors or outdoors, and it's ready-to-fly for $99.

Parkzone also has a new micro electric Cessna 210 Centurion that they just came out with for $149.99 that includes a Spektrum radio.

Sig makes a number of kits and ARFs that are popular for indoor flight including their Fokker DVII, Curtis Jenny, and Bristol Scout biplanes. They also have kits of some pre-WWI aircraft that are wonderful indoor flyers; the Demoiselle is very popular where I fly indoors, and the Antoinette and Deperdussin kits should fly equally as well.

The Global Jazz Bipe is a beautiful slow flyer for indoors. The IFO is popular, and an especially good choice if you want something that's aerobatic and almost indestructable.

Most of the Great Planes Flatouts, Ikarus Shockflyers, and Thunder Tiger EP Profiles are popular choices for indoor flying. I've also heard that some of the E-Flight foam profile planes are terrific flyers, like their new Extra 260 foam profile.

I could go on and on, but I've already names a few dozen good choices. Good luck and good shopping!