City_Boy I looked this spring at the CK20 via an internet dealer, opted not to buy it only because I wanted a closer dealer, but it looked like a nice tractor. However, and this is a topic that generates a lot of debate, I would suggest that you seriously consider the HST versus the manual gear as a big issue.
HST is typically faster to learn WELL, allows you to manuver in and out of places faster and safer, is safer on hills, and is better for anyone new to tractors. And anyone who has played with tractors for a long time can argue the other way, but many on this forum who have been around for a while and grew up with tractors will say that on the CUTs getting it with HST is the best way to go. Like I said, there are people who debate it, some even argue the point, but HST is a wonderful thing, sort of like using a computer with a spell checker to type a letter versus using an old manual typewriter. I can use either, but one is a heck of a lot better. Just my 2 cents.