I've mentioned Mark's Daily Apple before - on his site, Mark espouses what he calls the "Primal" philosophy, which is not quite the same thing as paleo. For one thing, he allows things like soy sauce and sweet potatoes in his recipes. However, he also says quite a bit about working out and exercise (which the paleo diet doesn't directly address), as well as about nutritional supplements, and his site is well worth a look.
Recently, a link appeared on his site to a Google Docs recipe book, and while I haven't had the chance to go through it in detail yet, there are certainly some interesting-looking recipes there. Of course, being primal instead of paleo, some of the recipes are not quite "kosher", but many of them still are.