Answering some of your questions...
Christian,Good questions...it can be overwhelming. The advice from others is right on. To specifically answer some of your questions:Buy a wing keel if you plan to sail in shallow waters otherwise get a fin keel.Buy a tall rig if you experience light winds in your area during the months you plan on sailing.I have a C-30 & I love it. I've been aboard C-25's and, as far as comfort goes, you'll find that C-30 is a major step up. As far as risk goes, it's all relative. Here are my suggestions:1. Like other's have said, do your homework. Figure out what rig & keel you're best suited for.2. Look at a LOT of boats so you fully understand what's out there & what they cost. 3. Be realistic about the work that needs to be done. The 30' boat is 20% longer than what you currently have. That's 20% more to paint, clean, haul, etc. Sails will be much more expensive for the 30 than the 25. Do an estimate of what it will cost & double it for budgeting purposes. If it's outside of what you want to spend, then find another boat.4. Don't get emotional about any particular boat. There are a TON of C-30's out there. If a particular boat you like is too expensive or if the deal falls through, don't worry. There's another one around the corner.5. Once you find a good boat, hire a good surveyor who has no connection with the broker, the seller or the yard that the boat is stored, docked or moored. Any one of those parties may have a vested interest in getting the boat sold. It's money well spent. 6. Check the archives here & on the web. There's a lot of information out there. Starboard chain plates, mast compression post repairs, keel bolts, 11hp diesels, Atomic 4's, running rigging upgrades, etc., have all been covered extensively. There's a lot of good useful information there & it will help you know what to look for. I check yachtworld.com all the time for C-30's just to look at the pictures & see what upgrades others have done. It's fun, convenient & free.I hope this helps! Let us know if you have any more questions.Allen Schweitzers/v FalstaffC-30 Hull# 632