Not quite an “anime event”, but close enough–a game music concert in San Jose in association with FanimeCon. Read below if you are interested:

PLAY! A Video Game Symphony [site]. During the weekend of
FanimeCon, PLAY! Will be presented by Jason Michael Paul Productions, Inc.
in association with FanimeCon at the San Jose Center for the Performing
Arts. This award-winning orchestral performance features music from
blockbuster video games (past, present, and future), will take place
Saturday night (May 26, 2007) at 8:00 P.M. For more information, please see
the PLAY! Website.

Tickets are available now and there are three ways to purchase them.
- Online: Ticketmaster
- In Person: Symphony Silicon Valley / 467 South First St. / San Jose, CA
95113
- By Phone: (408) 286-2600 (Symphony Silicon Valley Box Office)

Ticket prices for this concert range from $36-$72 a seat with a select group
of the best seats selling for $100 including limited edition PLAY!
souvenirs.

As an added bonus to all currently registered FanimeCon members, Play is
offering a special discounted rate on ticket prices. There is a $6 discount
for FanimeCon pre-registered attendees, and a $10 discount on the $100 seats
with souvenir bags. The secret password to take advantage of this deal is
“fanime” in lower case. Enter this code when you are purchasing your tickets
through Ticketmaster.