Full stat block for my BBEGs. Otherwise, it's essentially what Patryn of Elvenshae described. For example, here's an NPC stat block for the upcoming session in my D&D game:
Bruiser - Warforged Brb6; Str 18 (22), Dex 13, Con 16 (20), Int 10, Wis 10, Cha 6; 72 (84) hp; Init +1; AC 20; +13/8 greataxe (1d12+10/x3) and +7/2 javelin (1d6+6) or +7/2 comp. longbow (1d8+4/x3); F +12, R +5, W +4; Feats - Adamantine Body, Power Attack, Extra Rage; Equipment - Greataxe +1, +1 enhancement on body, Cloak of Resistance +2, six 1st lvl potions, 2nd lvl - Bull's Strength & Bear's Endurance, one 3rd lvl potion
When raging: Str 22 (26), Con 20 (24), 84 (96) hp, AC 18, +15/10 greataxe (1d12+13/x3), F+14, W+6
Raging and 3 pts power attack: +12/7 greataxe (1d12+19/x3)
Raging and full power attack: +9/4 greataxe (1d12+25/x3)
SR 19 due to Greater Armor Enhancement from Artificer
Bull's Strength & Bear's Endurance on self from potions