RE: House rules
Yep, a bit of a monster so take it bit by bit. My favourites are the tank movement rule and infantry smoke rules. You will also find the answer to your arty question in the sticky section too. As for force composition, that is hard, I always try to buy realistic and to the map, but some guys love tanks, others infantry, hard one.
If you also look at the "hints and tips for new players" I talk about force purchasing and stuff in there, it may help.
Some of us are busy doing things; some of us are busy complaining - Debasish Mridha