Best Debs Foundation

Well definitely use a primer first. I always use Lancome primer but I think Smashbox do a good one too, a good bit cheaper too. I use Lancome Teint Idole and I really haven't ever found a foundation that compares to it for its staying power!:p

+1 for double wear

Only problem is it has spf in it which can reflect a bit whitish in photographs. I don't know one any where near as good as it without spf though. It is all of the things you wanted: really long lasting, full coverage and a matte finish. If that's too expensive then maybe consider Revlon Colorstay or Vichy Dermablend. If you go for a high end one you can ask for a sample first to make sure you have the right shade. With the double wear the application is really important - you can't buff it in or blend it loads like many foundations so you gotta apply it fairly quickly. thinly and blend it as little as possible (just enough to take out lines etc) and it will look flawless.