The Download took a LOOOONG Time... About 4 hours... and I'm on DSL!!!
The game does play with my all in wonder, so you should be good to go. There did seem to be some lag on occassion, but probably no more than you'd see in other mmorpgs so it's all good.
I've read a few tutorials on it over the last couple of days... looks like you mainly either need to pay in to it to get weapons and stuff right off the bat, or work your way up. In the couple of hours I played today, I got about 85 or so sweat thingys from the creatures near Atlantis Port. Some of the folks in there were talking about selling 2000 or so sweats to other players for 15 peds or so... I think 10 peds = 1 USD dollar, so in the beginning, it's a slow process and won't get you much money, but I do see how if you work hard enough, and enjoy playing the game a lot this could be profitable eventually after you play it enough to get good strategies and stuff put together... tutorials I've read say when starting off, go for sweat... after you get some peds, then go for hunting/mining... and eventually work your way up the food chain to buying land... and after that you can use that land, and have others come to it and mine and hunt on it...
If you do download and try out the game, don't go after creature's sweat on your own at first... try to find a team so that the critter doesn't only go after you... the lowly critters near the cities seem to do 10-15 points of damage... 5-10 hits like that and you die, teleporting to the city terminal...