I'm not there (yet) so I don't have a lot to offer from direct experience, but here are some things you might want to check out:
In addition to searching through this j-pouch site for tips, I've heard good things about a couple of sites:
http://www.healingwell.com/http://www.ostomy.org/And I've heard that the following undergarments are "must-haves":
http://www.ostomysecrets.com/Last, but definitely not least, there's a great blog by women with IBD that includes info about life with an ostomy:
http://www.girls-with-guts.org/blog/ Even though most of the contributors are young women, I really appreciate their posts and I'm definitely not in my 20s! Their info is inspirational, funny, gutsy, and informative.
Wishing you all the best with your upcoming surgery. May 2013 be the start of a healthier new chapter!