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Slingbox is awesome, you won't regret it! Also just got a Samsung i760 phone and it works great with it also.
 
I use it with my computers (see below). I have a Slingbox A/V - bought for $120. Love it, we sold our TV and use our computers at home now. Image quality at full screen could be better...also they are coming out with a recording ability for the PC (in beta now) and say they will make one for the mac down the road. I record using SnapzPro every now and then. I wish I had bought the HD model. Oh, and make sure that you use an 802.11n router at 108Mbps so that you get the best streaming out of it...802.11g works fine, too.
 
I have a Slingbox Pro and I love it. I do wish they would release a player for the iPhone. If Blackberries can do it, why not the iPhone? I hope when they release the SDK it will follow soon after.
 
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