Hi folks,
Newbie questions, so please be patient with me.

I've tried to find answers to these through these threads, but haven't succeeded, so I thought I'd ask.
I'm looking to buy a new ereader, and am considering the Kobo Touch, so I'm info-gathering to try to make an informed decision on things that matter for me. Can anyone please tell me:
1) Do the fonts loaded in the Touch support extended character sets? In particular, roman letters with accents and diacritics?
2) Does the Touch allow you to load custom fonts and use those as a default for displaying books?
3) If an epub has fonts embedded in it, how does the Touch deal with that? Which takes precedence - the font(s) in the epub, or the font chosen in the settings on the Touch?
Thanks for any info. Oh, and one question unrelated to fonts:
4) What does "sideloaded" mean? Is this an epub file loaded from the PC, rather than downloaded from Kobo? Does the device handle them differently in some way?
Thanks.