>get light armour
>train better with the bow
>train even more with alchemy
>gather deathbells, nightshade, canis root, thingy heart, chauris eggs and vampire dust
>create super toxic poisons, paralysis poisions and invisibility potions
>even on hard mode this can prove to be a deadly hit against draugr deathlords
i didn't know that undeads may also get poisoned or paralyzed! doesn't make any sense!! but i will try your arrow+poison formula

Yeah, they can be tough. My current character is similar to yours, and I'm avoiding enchanting/perks I feel are overpowered. Right now, my current way to defeat them is to use an invisibility potion (I make my own), get behind them, and get the sneak bonus damage. Right now my bonus damage is 12x with the 6x backstab perk and dark brotherhood gloves (avoiding the 15x at the moment), and it takes their health down almost a third. After that, I normally try my best to dodge it's attacks, and when I see it getting ready to shout, I unequip my blade so I don't get disarmed. Normally I use Mehrune's razor on the off chance I can get an insta kill somewhere during the battle. If I don't, I usually have to use at least one health potion. Invis potions are a lot of fun and very useful, you should consider trying to buy or make some. I recommend making them, because they are expensive. Also, paralysis poisons can save you a ton of trouble. I made a few the other night that get 9 seconds of paralysis. Can be very helpful.
thanks! your strategy worked fine... though i m not as high-level as you are! i tried the sneak melee strike and he killed me!

still need to get better in sneak... and with the shout thing!