What's your budget?
I strongly recommend Lightroom 2.0 since it is a great workflow piece of software, editing is just one part of it. Not sure why you'd want something totally separate. As an alternative you could use Adobe Bridge, which is integrated with Photoshop.
I love LR because it makes it easy for me to find my favorite shots. First I discard what I don't need (shortcut x), then I'll go through what's left and assign a 5 star to the best images, then I assign a red flag to the very best (color coding allows you to separate photos and makes it very easy to find them: for example code your best landscape photos green, the sport ones yellow, the wildlife ones black, architecture blue, etc.)
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