About that time of year...
I play in a keeper league with a group of friends. 12 team league, standard scoring. We can keep four players. Your first two picks must be keepers, then you can keep any two other draft picks from last year. If a guy was kept the previous season, you can still keep them, they just get kept as a 3rd or 4th (4th if you've used the 3rd on another keeper) pick instead of the round they were drafted in if you're keeping them for the first time. You are allowed to keep a player at a higher round if you want (so a guy drafted in the 3rd round could be my 2nd round keeper and I would then have a 3rd round pick, which is the first round we actually choose new players in our draft).
Here's my potential keepers and the round value they'd have to be kept at:
LeSean McCoy - 1st
Matt Stafford - 3rd/4th
Julio Jones - 3rd/4th
Doug Martin - 3rd
Dez Bryant - 4th
Pierre Garcon - 6th
Rashard Mendenhall - 10th
Lance Moore - 11th
Michael Vick - 12th
I'm strongly leaning towards not getting cute and just keeping McCoy, Jones, Martin, and Bryant and not having a draft pick until our 3rd actual round of drafting after keepers. I worry about not keeping Stafford, though, as QBs go fairly quickly. I expect that Rodgers, Brady, Manning, Brees, Ryan, RG3, Luck, and Kaepernick will all get kept. Without a 3rd or 4th round pick, I might not be able to get one of the better unkept QBs and could end up with a struggle there.