I highly recommend that you get a Falcon. Although Jaspers are the least likely to have red rings (due to overheating) in the future, they take FOREVER to glitch. For example, I glitched my 512 Mb Jasper and it took about 1-2 minutes to start. I did the capacitor fix and it boots quickly but the SATA, USB, and Network Controllers wont work.
Falcons are more likely to red ring but not if you keep them in an area with good airflow. They are also more likely to glitch (instantaneously if you solder well enough)