I've been on debian stable for many years as my primary desktop, being quite happy with relatively old software provided most things worked as expected. The only things I ever updated outside of the repositories were firefox, openoffice and only random other small things. However I finally have had enough. KDE 4.4 broke me. No, I'm not interested in using a different desktop. I tried and tried recently and they just never felt right, mainly because I've been on KDE for so long that it works the way I want it to (when it did work!). KDE 4.4 still had some showstopper bugs for my usage that affected me daily, and reporting them upstream has had no effect, because they're all fixed in 4.5 or later, and will not be backported to 4.4 on debian. Now it's not entirely debian's fault since they have to freeze at some point - I do understand that. It's just that kde4.4 was still... meh.
So I bit the bullet and installed (K)Ubuntu 10.10 on my primary desktop, which till now I'd only used on a laptop, but it had been quite respectable. After an uneventful install and reboot, my keyboard and mouse would not work. I tried different usb keyboards and ps/2 ones to no avail. Ironically the install DVD worked fine, and using the rescue mode I tried the first logical thing - I installed a -ck kernel that I had from my previous install. This fixed it. So anyway I'm not going to go on about distros because that's a long hard painful discussion that there is no answer to, and all I can say is there are different distros out there and just use what's comfortable for you. I'm also not going to try and review the distro. There are enough people out there that do this already. I just wish the KDE 4.x composite + nvidia driver combination causing high CPU usage and slowdown issues with kwin and xorg would be fixed :\ Search for kwin high CPU and nvidia and you'll see loads and loads of posts on heaps of forums with different distros and no solution. I'm betting it's nvidia's fault. (Disabling blur makes it use less CPU, but sluggishness kicks in after a while regardless).
So anyway the point of this is that I figured - what the heck, I may as well make some distro kernels for Ubuntu that people keep asking me about. So I've quickly packaged up an amd64 22.214.171.124-ck1 and 2.6.37-ck1 kernel. The older one I recommend for most people, and the newer one for relatively more adventurous souls.
For now they can be found here (no ppa or anything at the moment, just .deb packages):
Note that if you have a 32 bit Ubuntu install, but a 64 bit capable CPU (as all are in the last few years) you can still force install these kernels and they should work fine on 32 bit userspace. You might have trouble if you install other drivers though. There's a good chance these packages will work on debian as well, but I can't guarantee anything. Please report back if you try that combination out.
EDIT: I added the backports ppa by kubuntu so that I can install kde 4.6 and all remnants of sluggishness are gone! Thank goodness. It looks like it was kde after all.