I'm fairly new to the game as well. I also started with a warrior. He is now lvl 45 and I'm about to finish the game (I think). Anyway, here is what I did in regards to the war drummers.......
I RAN away.
Killed all the other orcs that I could for the exp. and later, since I had to go back to most of those areas at least once anyway, I had a little revenge session and took 'em out. Hey, exp is exp. <img src="/ubbthreads/images/graemlins/devil.gif" alt="" />
So far in my experience with the game, having a weapon that has frost dmg on it helps greatly. Plus, I didn't have to waste any points on a freeze spell.
If I was to give simple tips on a warrior build, that is purely warrior (which IMO is nearly impossible) I would suggest these to start as soon as you can use them:
Choose one weapon mastery and stick with that
and at least one point in one of the elemental damages (I chose Lightning)
Again, in my experience so far, once you start gaining lvl's and finding better gear, skill points can add up fairly easily. Also, as mentioned, making a purist warrior is going to be very difficult. Somewhere down the line, you are going to need some form of spell or other class skill. For another example, I now have a lvl 5 lockpick. No more searching for keys (for the most part) and if it can't be opened with that skill, chances are there is a lever somewhere. Very few times have I had to have a "specific" key for an area. Lockpick wasn't neccessary, but it saved me time with looking for keys, and that's how I prefered to build my charactor.
Hope this is a little help.