Tree,
Congrats on the decision. I think you'll have a blast. The rod holder deal, is basically you have to construct your own, which is good cause you can customize it to fit individual rods/nets and to fit your individual float tube. Basically get some pvc pipe and some strapping and go at it. Both are available at OSH or Home Depot or similar stores. When I'm not fishing (which hasn't been too often) I"m scuba diving so I use jet fins which are old models, been around forever, and are awesome. Many believe that they're the best fins ever made. You can get em real cheap at garage sales and stuff. There are countless accessories that you can acquire as you get more into it. From anchors (not really necessary) to drink holders to extra storage, to just about anything you could need. Most of the stuff you can get by with re-creating yourself for cheaper or whatever. As for places to purchase, check different internet sites. http://www.thefloattubestore.com has a lot of selections. I got my boat at sport chalet in oxnard. They usually have a decent selection. Don't listen to any of the BS they tell you down there though. I had the guy forbid me to use it in the ocean. riiiiiight. I have had the worst luck with hodgman waders. They have a new float tube line out that has a higher back but the straps are velcro and they kind of piss me off cause they always come undone when you're getting into the boat. As a beginning float tuber you're ok with waders. If you're a suicidal maniac like Jamon, I would suggest a wetsuit. Jamon will charge barreling waves with a 4 ft. face without giving it a second thought. Consequently he gets quite wet very often. But for the rest of us, we don't need to charge any huge waves and we'll be ok with waders. You may want to consider something like glacier gloves just to deal with short wsb and halibut so that they don't get loose in your float tube and pop a hole in it. I don't use them but I certainly have had a need for them lately. Have fun. Let us know when you get the tube and we'll all go out and get pulled around by wsb!!!!
-Brian