I was in the Best Buy today in Westwood, California. They had a shrink-wrapped bundle where you could buy Splinter Cell, Unreal Championship and MechAssualt and save $15. Combine this with one of the $5 off Best Buy coupons which were readily available (if still valid) and you can get all three games for $130. Not too bad, and you get all great games from what I hear. Definitely worth considering.
On another note, they had a big xbox bundle that included the JSRF/Sega GT Xbox, one older game (halo,etc.), an extra controller, memory card and Game Doctor for like $330. What a rip off! Who the hell wants a game doctor? You only need one of these if you frequently play frisby with your games or use them as coasters. What a worthless bundle.
Not sure if this is nationwide or not. Like I said, the bundle had definitely been shrink wrapped in the store and had some sticker lettering on it to advertise the discount. So YMMV. Good luck Xbox shoppers.