@mahasamoot: I'm not sure I fully understand what you mean by 'archiving' but maybe this will help you: kmail has a very nice feature, which is single-key shortcuts.
For example: n to compose a new email, f to forward an email, etc, and also m to move and c to copy an email or group of emails. By pressing one ofr those two letters, a hierarchy of folders shows up to select where to move/copy the email(s). That window filters as you type, so you can quickly find the destination folder.
I have a notebook and I hate touchpads. I recently found those two shortcuts that made my life so much easier :)
Cheers, »