As others have mentioned, Fedex Ground is usually
cheaper.
Just watch it on the FedEx Ground pick ups. They charge an $11 weekly fee
for each week a pickup occurs in (one fee, as many pickups and packages
in the week as you want). If you send rarely, this can very easily negate
the price savings over other carriers like UPS since you can't spread the
fee across multiple packages.
Of course, you can do what I do and just drop the package off at a FedEx
depot and then they don't charge you the fee.
-chris
<http://www.mythtech.net>