I just entered the DLC at SL 82 with nearly fully upgraded elite knight armor (except for the helm), a +10 balder shield and a +5 black knight halberd. Artorias was still a tough challenge in that I needed to summon someone to help out (got frustrated after dying when he had 1 hit left). I wipe the floor with all the other enemies but from what I gather the bosses are the best in the DLC. You should still have a ton of challenge with your build.
@patman99: I actually have a boxed copy of Daggerfall that I purchased when it was released. I remember getting pretty far at the time but I was pretty young than. I've never played Arena though and never tried fighting with Dos box to play it.
I'll still probably pick this up though because of my love for the series. Would have been nice to see a little bit of care put into the two earlier games though.
I'm surprised Bethesda didn't, at the very least, make the earlier games compatible with modern windows if your spending 80 dollars for this anthology. Thanks for the info. Still a cool package though as Elder Scrolls is one of my favorite series.