Basically the digital video cams that enable you to hold at low angles-they have a handle on top and alllow operation with the LCD open or closed. Of course budget is always the main issue but you should also consider how you plan to post the video. If you plan on doing tons of footage, you may want to look at nonlinear (tapeless) options.
Depending in budget you could look into entry-level HD with either a JVC GYZ-7 (not sure exact model#), but it has a hard drive and can take external cards. If you have a bit more budget look into Canon or Panasonic (AG-DVX-100B) has a really filmic look to the image as it captures in 24p mode.
Check out a reputable dealer like full compass, EVS online, B&H online, etc. Make sure you plan on storage media, batteries, and a good pro case (Porta Brace is an industry-recognized pro company, as is Pelican hard cases). Feel free to PM me if you have any ?s.