I think Firewalker's suggestion of alternation blocks of semi/auto is a valid one. Personally, I wouldn't play a no-auto game unless it's a pistol/shotgun-only game. I played CQB this winter almost entirely with just a pistol on semi against people with AEGs on full auto and had a lot of fun. IMO, having people running around with replicas of automatic weapons but limiting them to semi is something of a mood killer, even if one is on the receiving end.
"The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."