Not sure about the dealer price offer, but Sig's website does have a rebate you can submit. I may just email Bud's and see if they offer this discount as well...a Sig P229 Elite is in on my 2008 list.
I know that H&K offers a big discount for LEO'S bying their frst H&K. It only works once though. I supose if you have bought H&K's before but never put in for the discount then u should beable to get it. It a one time only thing though. Not sure if it applies to Military though. Look into it. Its a good deal if your eligable.
Sportsman Warehouse occassionally has a "Public Safety" sale day for Police, Fire, EMS and Military. 20% discount on everything except firearms and optics which are 10%.