I've been using the VisualSVN plugin for the past few years and have found it to be really pleasant. It's $50, but it's been well worth it for me. http://visualsvn.com/

Alternatively, it sounds like AnhkSVN has been making some great strides lately, but a bad experience with it several years back has kept me away from it. They're free, so they might be worth checking out as well. http://ankhsvn.open.collab.net/