I use Bare Escentuals. Haven't tried others since I've been happy with it.
I used their website for my first order, then found that Sephora carried the products and found it easier to make choices and buy exactly what I wanted at the store.
As for us wrinkly types (got 'em!), I recommend that you make sure you've got the right brush, don't use too much, and practice practice practice (or maybe ask a clerk at Sephora for a demo?) application technique. Although I wouldn't quite say that it hides my wrinkles, they appear subtler and less pronounced than with classic foundation or no makeup.
The stuff minimizes or erases the flaws, and most think that I don't wear makeup.
