The Wal-Mart on 249 @ Spring Cypress has Winchester White Box 357 SIG for $13 something per 50 rds. I saw it today (8/3/05).
If you can afford $209 at one pop, http://www.ammoman.com will ship you a case of Federal ( that's $10.45/50 rds) He has some loose packed Speer Gold Dots in nickel cases for $229/1000 ($11.45/50rds).
Just passing on some info for any other 357 SIG shooters on the board. This was the 1st time I had seen 357 SIG ammo at Wal-Mart. I guess anything is possible??