Anyone know who has the best ammo prices on the web ? Also whos got the best local ammo prices in the Dallas area? I know gun shows usually do but I end up shooting it all up anyways.  thanks for any help !

Keep an eye open for the Bass Pro sales flyer.  The last time they had .223 ammo on sale it was Win. Q3131A for $2.88/box of 20.  They don't always have it on sale but it doesn't hurt to look at the flyer just in case.  Dallas Reloading Service has reloaded .223 55gr fmj for $124.00/1000, the last time I looked.  They don't have a web site but you can do a search and get their phone number.

Online I use Wholesale Hunter or like Firstar mentioned keep your eyes peeled for the B.P.S. ammo sales.

You also have eric the ammoman @
www.ammoman.com

It's gonna depend on where you look.  If you need 5.56/.223, check out under the AR15 forums.  There's a AMMO forum in there.  They mostly talk about 5.56/.223, but other ammo gets discussed.  

Check out places like AIM surplus and Ammoman.com.  There are many places that have good deals periodically.

(if perchance you're looking for 9mm, get some Olympic from Ammoman.  $120 DELIVERED for 1000 rounds.  He's got other good deals, and he's a real great guy, so even if he's a couple bucks more than someone else, I feel good giving him my business)

Don't know if your a "wolf" man...
Cheaper than Dirt..
1k for $94.50
w00t!