UnselfishPLRVideos is a membership site with at least 6 videos a month that come with a professional sales page (with .psd for easier changes), and decent quality videos. You have user PLR rights only, but are allowed to resell the flash videos with RR (not the editable ones).

Pros: Good value for the low price of $37.  They really are sellable hot topics that are relevant, and actually teach me things (not fluff like some cheap PLR videos I've seen) The bonus alone is a great topic - selling ebooks to the huge growing Kindle market right from Amazon.

Cons: Another one limited to internet marketing related how-to videos - which is perfectly fine if that is your main market.

SocialTrafficNetwork is a new site offering quality PLR vids on the theme of Web2.0 traffic from social networking sites.  This membership site provides private label videos per month with rights mainly to resell, but not allowed to resell as PLR.  You get 25 videos immediately plus 3 new ones monthly.  Not many memberships left.

Pros: Professional quality and well done.  They come in flash and wmv.  The bonuses are very helpful - blog optin, squeeze page, and reports.

Cons:  Focused on the social-networking niche only.  Good if that's your focus.  

Worthy Mention:
AffiliatePowerVideos: Videos are useful to pre-sell an affiliate product and build your list. Grab 5 free optin videos. The upgraded membership supplies you with pre-writting responder messages, & much more.

PLRweeklyVideos:  How about getting 40 private label videos per month!  Wow.  Most or all are in the IM or computer how-to niche, but worth a try.

While UnselfishMarketer isn't really a PLR video site, I've been seeing at least 1 or 2 videos with private label or resell rights every month since July. Besides Videos, there is software, ebooks, audio, templates, graphics, etc. Truly a must-have membership for a steal of a price.  (Psst-Secret: They also have all the SQuickVideos mentioned above, but with RR or MRR)

Pros: Can't live online without it. Membership vault is absolutely huge. If you see a PLR video or other product you want, just ask him to buy it, & you might get it free in your members area, or for dirt cheap (depending on what rights he has). You won't find a larger resell rights vault for your money anywhere!

Cons:  They are allowing too many people access to this site for my liking - giving me too many other promoters of the same products! But oh well, stats show most people end up just leaving them on their hard drives, so more for me ;-) Some items are seen many other places, but there are enough unique PLR plus it includes several other monthly memberships, including "unrestricted PLR articles", templates, etc.