I went off the pill almost 4 years ago when my boyfriend and I broke up. I didn't notice any emotional changes, but it's hard to say, since I know I was dealing with a lot of emotions related to the break-up itself.
I would recommend finding another bc method to use with the condoms. Condoms aren't much fun (in my opinion), and their effectiveness rate is just too low for my tastes. Plus, it takes away some of the spontaneity that is fun with sex.
Here's a good resource to check out effectiveness rates:
http://www.fda.gov/Fdac/features/1997/conceptbl.html It's from the FDA, so it should be quite accurate.