Camo is largely a personal preference if you're not playing on any particular team that requires it.
These are my personal favorites:
1) British Woodland DPM
3) US Tiger
I wear primarily 1 & 2, this allows me to play most skirmish games that are often broken up into "digital" and "non-digital". I'd say 80% of players these days are wearing multicam.
As for a vest, this is what I use:
Tactical Tailor 2-piece MAV with X-Harness
Bought it several years ago and never looked back.