I got Starband set up about two weeks ago but haven't really networked it yet.
If you can get DSL or cable modems, that'll be a good deal cheaper, and have less latency; plus it'll probably be more reliable. Starband is a bit cutting-edge and prone to problems right now. But if you live where DSL and cable modems won't be available for years, like I do, Starband is well worth it.
Upload speeds are comparable to a good modem connection (upper limit about 100Kbps but realistic speeds around 40Kbps) and downloads are 700-1300Kbps, but there's a built-in second of latency due to the signal travelling at the speed of light about 40,000 miles, which makes it inappropriate for gaming and difficult for VPN, telnet, etc. But it's wonderful for browsing, downloads, mail, and news.
You need a computer running Windows 98 or ME with a free USB port to get things installed. But you don't have to use it that way. See http://www.starbandusers.com for instructions for how to activate the RJ45 port in the Starband modem, then hook it via crossover cable to a LinkSys router, and you no longer need the Starband USB connection and all its silly software, and you can share with several computers, even your ePods.