Tribes: Aerial Assault, to me, is fun; I think the online playability is a ton better than SOCOM.
There's no real online chatting in T:AA, but you've got different ships and jobs to do, whether it be repairing damaged equipment or running in light armor to Capture The Flag.
For newbies, there's lock-on mode, so that helps... and eventually, you get better at it. I didn't think I'd like CTF that much, but as I got better, it's my favorite mode. I'm still getting used to DeathMatch/Team DeathMatch... but sneaking in and taking that flag is great.
For a few bucks more you can probably grab the SONIC MEGA COLELCTION for the Cube, which has Sonic Spinball in addition to Sonics 1, 2, 3, Sonic and Knuckles, and Dr. Robotnik's Mean Bean machiene. Get the mega collection over just the spinball.