If you're unhappy with Windows Search, which is certainly much better than it used to be (it's a mystery why it's not as efficient as Apple's OSX Finder yet), you could give Super Finder XT a go.
Super Finder XT's interface has the 'ribbons' style, introduced in Microsoft Office, which looks really smart and is certainly very accessible. There's a choice of blue, black or silver skins, and you can add plugins too - although currently there don't seem to be any to download!
Obviously, the most important feature is the search itself, and Super Finder XT doesn't disappoint. It's a little slower than Windows search, as it doesn't index all your files, but this makes it a faster install, and a much lighter application overall.
You can refine your search by drive or path, make exclusions, search by date or file size and more. If you donate by paypal to the project, you can use some additional features like 'deep recycle bin scan'. Some of the Advanced options could be off putting, but there's a good help manual included that does a pretty good job of explaining what everything does.
All in all, Super Finder XT is a nice lightweight alternative to Windows Search. It's easy to use, but has great advanced options too.
