Most people consider Satellite out of the question for such games, but there are few that have done it successfully. There are some threads here about doing it with some links. If you look on the first few pages of threads, there should be a few titles that jump out and one of them will have some information on doing it.
As others have often recommended, if you know someone in your area with Sat connection, see if you use their computer, or take your's over there and hook up and try the demo out, and see how it works.
Even people using Wi-Fi often complain about the ping times, and I can't really see how you'd get any better on Satellite than Wi-Fi. Personally, I can't tolerate anything over 1sec ping (1000ms), but some can and adjust to it. And I've heard of people getting under 2sec pin on Satellite, but even with that I wouldn't be able to take it.
Modem play is stlll tolerable on faster computers. If the computer is slow also, modem play becomes very rough, but mostly only during zoning / patching. For the newest zones, I can't imagine how long the zone time would be on modem, since I haven't played EQ for at least 2yrs with modem. However, at the end, we ran 3 computers, 2 playing EQ and/or EQ2 simultaneously on dial-up, and it worked fine, 'cept during zoning, and either computer zoning, severely lagged the other one out.
Hope this helps, and best of luck.
Yther Ore.