...and it works like a charm!
Some more integration and a couple of extras - I recommend it!
I opened Adept and added this line under repos:
clicked "activate" and pressed full upgrade and BOOM KDE - 3.5.9 - me likes!
Don't try this on a production machine though, in case anything goes wrong, it's always better to try out new things on a virtual machine first, it can save you a lot of pain!