I was quite happy with Smashbox Bionic Mascara. In fact, it was one of the better mascaras I have tried in a while.
At first blush, Smashbox Bionic Mascara looks pretty standard. Standard black tube, fairly standard bristle brush, etc. But the brush has a bit of a different shape to the bristles, and I got really nice length from it. So much so, that I was rather surprised! I don’t normally get such length with a standard bristle brush. I also had no clumping or other issues. Definition was also nice, with a really natural look. So look to this one for length with definition, no so much for volume.
The Beauty.com link I gave does include a bad review of it though. That person reported smudging. I didn’t have any such problems though and have worn it all day several times now.