What's the difference between the Slingbox 350 and Slingbox 500?

Stephanie wants to know what the difference is between the Slingbox 350 and the Slingbox 500. The main two differences is that the Slingbox 500 has Wi-Fi built in, if the cable modem isn't close to the TV, and it's also in HD. So if the modem is close to the TV, Leo thinks she'd be fine getting the Slingbox 350. If her husband will want to watch content in HD, though, she should go with the Slingbox 500.