You won't be fine with a 56K modem in any game anymore man. It's pretty much obsolete.
As far as everquest goes, well... If you want to play a game that has come out about 4 years ago, has got 4 year old graphics, and start off at level 1, where everyone else is level 50, and has been the cause of a suicide, everquest is your best bet.
Everquest 2 is coming out in about 2-3 months if they don't pull some source code bull, like the HL2 producers, and it should be really good. Graphics look amazing, etc. There's a slew of MMO games that are coming out that look promising, although I've said that about A LOT of games. Then again, I've played all of them and thought most of them were really cool, save a few like Final Fantasy XI and Everquest (now). Everquest may have been cool for a person to join about 2 years after it came out... but 4 years later? No.
The few good ones that are coming out soon are:
Middle Earth Online - based on the Lord of the Rings, and the story begins as the Fellowship of the Ring is going into Moria. It's got great graphics and it's set in my favorite story of all time. Read the books when I was 10 and seeing the story spring out all over the place, now that I can really appreciate it, is absolutely wonderful.
Everquest2 - it's everquest 2.... most ppl will play it just for that
Lineage 2 - It looks like it's going to be really cool and has got AMAZING graphics, but Lineage 1 was really popular in Korea, and I can't stand games that cater to asian audiences. FFXI is the ultimate example of games NOT made for americans to play. There's male supermodels and furry creatures running around as player characters. Then there are games like the Dynasty Warriors series. Yes, they've got really cool ideas. I love the fact that I'm playing a warrior in a HUGE epic battle, but the story is always SOOO damn stupid, and the voice acting is the WORST I've ever seen. That all said, if they make the game anything like the typical MMO, I think they'll have a contender.
Ultima X: Odyssey - It's the sequel to Ultima Online, which was my favorite MMO, until they ruined it with Trammel and made it a kindergarten. It's based on the Unreal graphics engine. There's a lot of cool, new things in UXO like semi-real time fighting, weapons that level with you so you don't have to buy new stuff all the time, and guild vs. guild battles.
So that's my two cents. Wait a few months and don't waste $20-$50 plus the subscription fees on some OLD OLD OLD game like everquest when in just a little while a bunch of AWESOME AWESOME AWESOME ones are coming out. But, if you REEEEEEEEEEEEALLY want to get everquest even after I've told you that you'd be selling your soul to teh devil by doing so, get Everquest: Evolution. It's got every expansion pack that's been released in it, except for the latest one I think. I could be wrong about that, but I'm pretty sure.
Good luck!