If you can, keep the screen size of the video large. Reduce the frame rate to shrink the file size instead. Then aim for a bit rate of about 400k to 800k bps with an MP4 compressor, like Microsoft's WMV9 or the free XviD codec. VirtualDub, free, will manage the compresion process well.
Online users tolerate the lower frame rates, it's been the norm for years.
Fav quote - "Experience is whatcha don't get 'till ya don't need it no more."
System - Athlon 1.4GHz, Win98, Hauppauge PVR250 receiver and compressor.
Software -Magix Movie Edit Pro 10, Nero 6 + NeroVision Express, Moho 4.61, PSP 8.1, Bryce, Quicktime 6.52 pro, Goldwave 5, DVD-Lab.
Cameras - Panasonic GS9, Canon ES8400V, Canon EOS D20 and Canon A70