Hey welcome back to gaming!
Check out Castle House, they are probably the closest place to play. I've head they have good tourneys and I know that a lot of the guys there will be happy to see another gamer come on board. Espeshully un what dat supportz Da Orkz!
If you don't mind the drive, Hobbytown in Bentonville has boards up and ready to play on Tuesday nights. If you don't feel up to gaming 40K, we also have an active painting/modeling table and other games going on as well.