Ill chime in a for a second, dont do it much....
I have both tools and I found that TG is much better for massive exposure. Rather than having one result per page if that with vpr (it all depends on terms your promoting as it seems tg will get the tougher terms in easier) for decent long term kw you will own the first page of google, msn and yahoo soon follow. This is all within a few hours too. Then after about 48 hours you are plastered on the first page and second. It is a very ingenious setup. If you go to tg, then close the window it will offer you a 1.00 30 day trial in a pop up window.
One suggestion however as I did this at the beginning of my video ventures and frankly I have made hundreds myself plus I have both tools.
When I use vpr I take all the links and used bookmarking demon to bookmark all the video links automatically with that instead of using the vpr submissions. I used the find meta and description feature automatically works well when grabbing the video links. Plus it is behind a proxy. The worsrt part of all the video posting and web 2.0 is setup of accounts. I would rather jump then do another round of setups...
I do find conversion difficult for larger more competitive items. Yes, youll own the page, and yes some of the video sites have a link back to your site that are actually functional but you are better served going to places like ebay, finding a specific product. Picking 50 or so long tail highly targeted kw and then making a few videos about it with a link to a plg link. like mysite.com/recommends/thisebayitem this has been very successful for me.
TG seems to work a lot better for massive exposure while vpr works well, also tg just seems more active in getting results faster. I mean within minutes of uploading you can have first page results.
TG also has a new feature where you can post in each format automatically. It will take the one video you made, give you the opportunity to upload 4 times. Each time it uploads you can chosse new kw tags, new descriptions and titiles but it will also convert/render the video you made to all 4 versions of uploadable media. it is pretty slick. These buys are pretty sharp. Just costs a lot but the benefits if done right far outweigh costs,.
Good luck and hope I made sense. If you plan to hit video hard, and have a plan, use tg!
rvbuilder
james