DOH!!! Yep, youre screwed, sry buddy. Best piece of advice I can offer (other than getting another) is take it apart FIRST before you try to do physical modding of the unit. I know you know this already though but couldnt but say it.
If the unit will not power on and you have not backed anything up through AS or even used something like PIMBackup then there is nothing to be done as far as I know. Next time use something like PIMBack up that can at least be scheduled to back everything up everyday or certain days and even save everything to a card so if something does happen the the main unit, you still have the data on a card. Sorry bro....