Thanks for advice, but:
I do use google contacts and do backups before I do something important, but syncing with google did not work well, so I do not have any auto updating google contacts when I add any contact to my phone (I add them later manually, I haven't done this yet with some). If I had those contacts anywhere else, I would not bother you.
By other stuff I mean some important documents and photos that I need at work.
I used the charger that can charge only the battery (without the phone) and it went well - it is not the problem.
I am not the guy who adds 1000^1000 apps and run them just to check - I had only those which I need, I really do know how to use that phone, I just forgot to charge it (and as I know - it often ends like this-the phone does not get up).

So, once again: can anyone tell me, if I can get any files from my phone? Please... ;]

Edit:
http://wiki.meego.com/ARM/N900/Using_Rescue_Initrd I think that is the answer, I'll try to use it tommorow.

EDIT 2: Edit 1 WORKS! ;]