All resources from the core handbooks are acceptable, with the exception of gnomes. Gnomes do not exist in my world. For feats or classes from other sources, ask me first – I’ll probably say yes, but I want to take a look at things first for purpose of game balance and also campaign flavor.
Rolling Stats – Roll 5d6 (drop lowest two dice) twice, 4d6 (drop lowest die) five times, drop lowest score.
Weapon Group Proficiencies – Unearthed Arcana (pg 94)
Pathfinder Skills (Paizo Beta Rules available freely from Paizo.com)