As a SL photographer I hate the standard SL feet. There are some shots that one really wants to have bare feet but the SL avatar feet are soooo ugly.
A little while ago I came across SLink when they had some lovely boots on Fifty Linden Fridays. I was really impressed with the boots and found the HUD system easy to use so I went back to SLink to have a look around. I found they have feet in several styles - flat, medium, high and tip-toe. All come with the HUD controller and a guest controller. I love them!
So if you are looking for some nice feet try a demo at SLink and perhaps they will be what you need :)