after some time I returned to idea install and use KDE on my N810

first attempt was rather experimental - KDE was useless because of it's VERY slow speed and huge dialogs

but now I see different alternatives - KDE4, several KDE 3.5.x deb versions

I wonder - which one better try first

process of installation consumes some time but I don't like loose time for a piece of software to just try it and uninstall

anybody already tried different KDE's?
what works faster and is more reliable?
does KDE4 support national alphabets, N810 hard keyboard and mouse rightclick? what about KDE3.5v4?

if I'll install KDE3.5v4 then will I able use Hildon apps together with KDE apps? what about KDE4?

which one KDE4 or 3.5 looks better on small N810 screen? are dialogs fit well to screen?

shortly - can anybody help choose right KDE?...