Canon T1i HD Video Review
While my Canon XSi was in the shop I rented a Canon T1i from borrowlenses.com as a replacement. It served me well while on vacation in NC and CA. Writeup on those to follow. Suffice it to say the XSi is a great video camera when paired with some nice lenses. Most of these shots are from a 50mm f/1.8 Canon lens. I could have been more still with a tripod but, meh, shoot from the hip 
On the down side the T1i has no mic-in jack so any serious video work will take some cludgery with an external recorder and sync’ing in post. Yuck.
Also worth noting that while it can get amazing shots when you’re lining ‘em up this camera is no fun for run-and-gun documentary style as I found out on our recent trip to San Francisco. This is due to two serious flaws. First, you cannot shoot using the viewfinder, only the LCD on the back. Second, the auto-focus is disappointing to say the least. While it may work for a locked off shot don’t expect it to be worth a damn when moving.
To auto focus you must center your frame or move the on-screen square around the subject. Then you must hold down a button which will take a moment to find the proper focus. Now don’t more the camera or let the subject move else you’ll need to press this button again.
The combination of lack of viewfinder and no live auto-focus makes me lose my technolust for this camera. Maybe next time Canon! Fix the video auto-focus, video in viewfinder, and Mic-in issues and you’ve got me…
…Then again if you do you’ll probably end up cannibalizing your prosumer video camera lineup.