Returning to ffxi

[Trykon]

I just came back from a 3-4 year break and a lot has changed.

I'm trying to decide on a main class to focus on and Dark Knight being one of my old favorites, I thought I would hop over here and see where they have gone and how they are.

My Dark Knight is at level (56).

Couple questions:

1.) What weapon skills do I need to cap. I remember Scythe being the main one with great swords secondary if needed and no one ever really used them. Are there any others?

2.) I remember it being a little more difficult to get parties at times with Drk. Has this changed at all? Someone in the linkshell I was in said that he had a hard time finding groups to farm seals (whatever that is) with drk so he changed his main to nin and that has me spooked haha.

3.) How good are drk's at soloing now? I was hoping to get a job that is half way decent at soloing, but that is more or less just for fun.

4.) I know I definitely need /sam & /nin as subjobs is there any others I need or will be expected to sub at times?

Thanks for the answers/advice in advance.