I'm a little burned out on d20 based D&D and picked up the following today for 1st ed.
B2 (B/x not AD&D happy though)
I have never DMed1st ed before but I have been playing 2nd ed off and on since late last year and played lots of 2nd ed before 3.0 landed. Is it hard to run these days if you are kind of used to modern d20 mechanics. Or 2nd ed mechanics?