Luke,, Float tubes... you're talking about my world.
Float tubes can be great,depending on what you are fishing for, and what you purchase.
I have an aluminum boat, kayaks, pontoon boats, float tubes, and a partialy built wooden boat. The thing that I use the most is def. my float tubes. ( fish mostly bass in small urban lakes from the tube, or trout fish in strange small lakes that dont' allow gas engines)
In my opinion you should completely stay away from what I call a "Belly boat" This is one that looks like this:
http://www.youtube.com/watch?v=h7Z4Satm ... re=related" onclick="window.open(this.href);return false; skip out to the middle of the video and you will see the tube. This is what i call a circular belly boat. These types of tubes do not move through the water very well. The have a rounded back that doesn't "Cut" through the water. You also sit in a sling type of seat, therefor you are very low in the water. The water level can acually be up around your stomach area.
I prefer a tube that is shaped like this one:
http://compare.ebay.com/like/2907681762 ... s&var=sbar" onclick="window.open(this.href);return false;
If you look at the back end of the tube, it is pointed. It cuts through the water very well. You could literally troll from it, as long as your legs held up anyway. There is plenty of storage room for your gear along the sides. The most important part to me is that you are sitting on a sort of seat that keeps you above the water. On this tube you will only be in the water from about your knee caps and below. Dryer, warmer, and easier to swing your arms around and work a fish, rather than being up to you belly in water.
Downside... it will cost you more money. Sure you can buy a cheap belly boat for 50 bucks on Craigslist, then there are some U-boat shaped ones that are about 120 bucks, but still have square rear ends, and are slow.
I have 2 that are like the one I linked above, The Outcast Super Fat Cat. I also have attachments such as a rod holder that holds 4 rods. Anchors... all though you don't really need it often. Trolling rod holders. You can put some low budget fish finders on them, and the Super fat cat style, has room behind the seat to store a few things, although it will be wet. (fish caught, etc.) You can buy a nice tube, but you can skimp on the fins if you want. I've got cheap fins, maybe 20 bucks. Take me everywhere. If you trust the water quality in the lakes you are in... then you can be in your shorts. But honestly, the issue is "Swimmer's itch" caused from a parasite spread by water fow, (geese poop) I recommend wearing thin summer waders in the summer. I use standard winter neoprene waders in the winter. And I do use the tube when there is snow on the ground.
There are various pumps available as well. I think this one is the best:
http://compare.ebay.com/like/1106961442 ... s&var=sbar" onclick="window.open(this.href);return false;
But again, you can go budget, and get something else.
Some people think that wind is an issue, and a need for an achor. I have an anchor, but think it is a hassle to carry and use. I find that you legs are in constant motion, and you just are always manuevering yourself around your target, wind or no wind.
Have fun!