BoeingBoy,
Before you go Satellite for internet. Here is something you should know from their FAQ.
You don't send the emails via satellite. You already need to have a back channel connection. So for instance you could have a 56k modem and an isp that you use with your modem. When you send your emails the emails would be sent using the 56k modem to the SatDrive servers via the isp. So the speed would be the sending speed allowed by the isp you use with your 56k modem in this scenario.
Something else, any webpage or email you request will have to go via phone line and then get beamed 22,000 miles into space, bounced off a 50 gallon drum and then travel another 22,000 miles to your computer. There will be a large lag between the time you request anything and the time it makes it to your computer. Once the data hits your computer, it will download very quickly. It is just the time till that happens that will be a few seconds.
If you are looking to play games, teleconference, chat, etc. then satellite is not for you. The lag is way too high.
Take Care,
Richard