Welcome, ShacharWeis!
For your text files, you can just drop them onto a memory card (no conversion) and load them that way, or you can use the Connect Software to transfer them to internal memory (also no conversion), but I would agree with Nate that you'll get the best results if you use something like BD to convert them to LRF.
I don't know if anyone has tried right alignment, but you
can probably use the hack methods posted in the Developer's Corner of this forum to substitute the fonts if you care to.