HU info. needed for g/f.. she's playing Gavin Smith!!

Hi,
Looking for some beginner/intermediate strategy info. for playing HeadsUp NLHE for my girlfriend. She's just been invited to come and play against GavinSmith for $500 in a live game at the B.C. Poker Championships. Any links etc. appreciated.
tks.

Don't get to attached to that 500$
:P

just read some of the threads in this forum, you'll find a lot of good information.