Of course. But adding more like 1200 would be better. Tough for a start it should be K. Go with it and keep in touch if you get a good account, post it on the forum and tell that you used Megenhos' list.
what spots do you use in the username grabber to get usernames? battleon yulgar what else?
It also depends on the server. I would advise going on the canned chat servers, there isn't really a decent account to crack on those servers. But it's best to start there. You also forgot battleontown, ballyhoo, and any other somewhat crowded maps of the game.