Yes, you'll find lots of posts about pontoons/catarafts on here. Os and I have been using them awhile. I originated with whitewatering before using for fishing.
First off, you can anchor with a cataraft. I do it all the time, with both my 9ft and 16ft cats.
What you need to decide is if you want a vehicle for going from point A to B or do you really want to fish on the way? Do you want to be able to stand up and fish? Do you only want a one person boat, or possibly taking on one extra buddy? How much do you want to spend? Do you want easy buy it ready or would you be willing to have a cat custom built? Do you want lightweight or sturdy whitewater?
I'll just say this, you get what you pay for in a cataraft. I've been using them over 10+ years and have yet to see a "cheap" cat that wasn't used. If you only want a "cheap" floating vehicle to get you to a fishing point and don't plan whitewatering and using lakes go with an Outcast or Bucks. Cheaper the better. But YUCK to that. If you want a good premade boat, then step up to a steelheader. 9 or 10 ft if you want a one man. But if you have the money, go with a 12ft custom made. You can make it adjustable for a 1 or 2 man boat. Still portagable by yourself, just not as easy as a 9ft. There are alot of good manufacturers of cataraft tubes. There's Maravia, Wing, Sotar, Aire, NRS to name a few. All make good tubes. I have a set of Aire tubes that are over 10 years old and still going strong. I know alot of whitewater guides and enthusiasts and you get a Ford/Chevy debate on tubes. I like the Wings, I know Os does, but I do like my Old Aire too. They don't make it anymore, and will hate to retire it someday.
Oars. Hmmmm. Well, I know alot of guys who retrofit their small cats with 8ft oars. Get alot more Umphh on the boat. But wouldn't advise for Outcasts/bucks. Their hulls aren't designed to take that much pressure. You'll do more rocking then actually pushing water. A Steelheader can take bigger oars. I use 9ft's on my 16ft Aire and 7ft on my 9ft Steelheader. I use cataract oars. You can get by with the higher end Carlisles. They're good oars and if you don't plan any hard whitewatering then they'll do you well. I have seen (and have video) of using Carlisles vs Cataracts. In solid class 4+ have seen carlisle bend while cataracts have either popped oarlock/pins or pushed boat around. I'm tempted to buy a set of 10ft carlisles for my cat. Want that extra Umphh when in swift water. May just buy a few more extensions for my cataracts.
Well, answer a few more of the questions above and Os or I can help you further.
Good luck......