Along with the suggestions others have made I recently found
http://www.thefoodee.com/tag/whole30/ and it seems to have some good recipes on there.
I've been eating Paleo (with some cheats and stumbles along the way) for about a year and a half and rather than list downsides and upsides here are a few thoughts and observations:
1. It can be expensive depending on how you eat now. If you eat a lot of pasta and bread now then be prepared for your grocery bill to go up.
2. I have to eat every few hours otherwise I get pretty damn hungry. But that might just be me.
3. Don't worry too much about your healthy fat intake, but be mindful of what you eat. Based on the diet you
can eat a ton of red meat, but I try to limit red meat to once or twice a week and go with chicken, lean pork, and fish.
4. If high cholesterol runs in your family then keep an eye on it. I eat at least 3 eggs a day and that plus bacon on the weekends and my cholesterol is excellent, but I don't know if that's crossfit+paleo or just genetics (no one in my family has issues with it). It might be worth getting it checked now and 6 months from now to see if it's working for you.
5. I think paleo should be coupled with fairly high intensity exercise at least 3-4 days a week as it isn't mindful at all of calories and despite it being good food math is math and if you intake more than you can burn you will gain weight.
Good luck.