Buy.com is selling the Slingbox PRO for $192.99 through 11/18, with free shipping. You can also get the Slingbox PRO with an HD Connect cable for $231.99, also with free shipping. (The HD Connect itself is $39.98, with free shipping.)
If you want HD support but only need to handle one device (as opposed to the PRO’s four inputs), the Slingbox SOLO is only $175.99, with free shipping of course. And if you don’t need HD the Slingbox AV is just $109.99 and the Slingbox Tuner is $104.99 – both with free shipping, no surprise.