FYE retail stores are running a $40 rebate on Halo 3 right now. They appear to be mistakenly offering this rebate without the requirement that you buy an Xbox 360 (which appears to be where the rebate originated). However, the rebate makes no mention of the need to purchase an Xbox 360, and prints at the register when checking out.

This brings the price from $59.99 to $19.99.

In addition, some stores have decided to stop selling games, and are clerancing Xbox 360 games at 30% off retail prices.  That drops the inital price to $37.99, and thus resulting in a small profit after rebate (though with sales tax, it’s pretty much free after rebate).

This rebate, of course, is in-store only. You can’t even find it on the FYE.com rebate search page.