Almost all of the recovery info you need will be provided by your surgeon. Follow the instructions exactly and carefully. Each SRS surgeon has different instructions for post-op care, so it's difficult to give specific advice. Since you're getting a two-stage SRS, I'm guessing you're having your surgery with Dr Meltzer or Dr Ley?
One bit of advice that is universal though, is to get in shape before surgery. Doing a lot of cardio exercise and having good physical stamina before your surgery will make your recovery much smoother and faster.
As for lubricants, I've found Surgilube to be useful. It's water soluble, bacteriostatic, and reasonably priced if bought in bulk.