Well, there is still fedora, which is also by redhat, but supported by the community (i.e. us and the bright guys that program it).
http://fedora.redhat.com/
It does have the new kernel, but is still a little experimental (how much I don't know, new gcc?). I am still using RH 9 and am happy with it, since last time I upgraded it broke many programs (that was from 8 to 9) and I don't want that game again, since I need my machines to work.
But of course the way is fedora for me. Don't hesitate though to check out other linux distributions. If you want it easy, but are ready to pay a little for it, try SuSE linux (since I always thought that they try to make it as user friendly as possible). I have heard that mandrake is very easy too and I am sure you can find many posts in this forum asking things like: "which linux distro should I use?" and getting plenty answer.
What I always hear is that debian is the way to go if you want the most customizable, stable and efficient linux, but not for the ones that just want to point and click.
If somebody into fedora is reading this:
1. It uses the new kernel. But can you use the features like "suspend to disk" already? Or is the software to controll the kernal feature missing? (like I think it is. I mean now in the distro, that it is included by standard)
2. These test releases are supposed to be unstable version? Or what does the test mean?
If you want to give it a try, download the CDs from the link above and install it. It's very similar than RH9, just that RedHat is not plastered over everything anymore.
Cheers
Markus