romanempyr,
Like Harry & Rusty both suggested a net backup acct. temporarily should allow you to move the important stuffs off the external drive then I would suggest that you also look at Qparted as well as fdisk for partitioning if you wish to do it from linux. If it were me I'd reformat the drive for 200 &100GB respectively with the 200 NTFS and the 100 VFat. If you can see the files on the crashed drive you can safely move them. Since I tend to be over cautious I Copy, paste then delete as needed after confirming. Yes, it is slow, however it does work and when the files are important I do not take unnecessary chances. I suspect this incident will encourage you to back-up,back-up, and back-up ...
Keep in mind that when Harry or any of the moderators have been there done that and really know their stuff. Anything I might suggest is based only on limited experience but I would not try under any circumstances to try writing to an NTFS partition from Linux. Good Luck let us know how it works out. Do the homework then try it with a file tyou don't care about before moving or manipulating data that is important.
By my hand-I Remain~
Captain Cautious