mage PvP

[zathriel]

i've got a 70gnome mage with frost/arcane talents and have rarely PvP'd so like the paladin in the other post i thought i would ask for some tips and whether it would be better to switch to fire forbetter results.
i find against locks n shadow priests i got dotted very fast and feared and my ice bolts take to long to fire off. i was in combat around HH , it was a melee situation with warriors , locks , rogues , priests and mages on the horde side and the warrior i was trying to tag kept running out of range of my bolts , my nova did not slow down the rogue that came after me and i kept getting feared
in the end i resorted to arcane bolts just to get some hits and two part kills