LOL @ fanny packs. The 296 fits perfectly in this "Tacti-cool" pack which I have used on occasion when bicycling.
http://www.amazon.com/Fantasybag-3-Zipper-Fanny-Pack-Teal-FN-03/dp/B004CSWGOE/ref=sr_1_3?ie=UTF8&qid=1326677979&sr=8-3
I love my S&W 296. I have it set up with a Crimson Trace LG-306 and I load it with Corbon 200 grain DPX - a sweet round featured in one of Stephen Camp's reviews (may he rest in peace).
.44 special DPX review
I have three holsters for it - a FIST #20 which never gets used, a Lobo Gunleather...