I'm on my first time through, level 26 and have only done about 60% of the first map, haven't gone off the main map yet, just completing all the quests I can and covering the area as I can. Playin archer mage with just working the following skills right now:
Bow expertise - 5
repair - 1
enchant weapon - 5
blind - 5
elven stamina - 5
magic barrier - 5
elven sight - 5
Any points I have to spare end-game will prolly go to capping spells.
Not using any special moves.
my current stat are highest agility, then int, then str, then lowest con (at 10)

I haven't spent 1 point on con, and don't plan too, spells i'm going on what I can buy, have found about 9 (mostly from guards), but like I said, haven't actually ventured to the npcs who normally spawn books yet. I have meteor lvl 2, and lvl 1: fire wall, drain life, bless, heal, wizards sight, elemental strike, freeze (or there equivalents can't remember exact names off top of my head). Things are a little tough in places, but I'm doing ok, I did the abbey at lvl 13 then went and cleared all he elite orc camps/orc quests SE corner of the map, that was all last night and I'm up to 26 now. I'm thinking it'll still be a little tough but I should be really strong in the end-game. I'm really tedious in my play to pick up all the quests, search every square inch of the map, and horde items. I've found a good strategy so far is to keep items I won't use that go for 3,000+ for trade, and everything lower I sell to various NPCs or trade to the 100% admiring wizard in alaroth for super potions since he gives em to you for a base price of 500 and they can be traded away for at the lowest 475 and reall don't weigh much. During mob hunting it's all freeze spell then hit with bow on the tough orcs, or mana dumping meteor strike/elemental hail when there's hordes of mobs, and heal/strike with weaker mobs. I have items I can put on for lockpick +2, which has worked on most things, and what it doesn't I take back home and store, all iding I have done from the wizard in alaroth for 100 gold a pop, and always recycle my gold back by sellin the crappy magic piece.