For more Wizardry / Hacker tales you could read Wizard's Bane (available online here: http://www.baen.com/library/rcook.htm ) a tale of a programmer transported to a world where magic exists.
I prefer Diane Duane's Young Wizards series. Wizardry is hacking. Oh, and teleportation spells can take you to other planets. It's excellently written, and as addictive as Harry Potter. More information:
