I’ve done a handful of posts on unicode fonts.  As mentioned here, I just use the windows Greek (polytonic) keyboard since I can stay in one font and type in English, Greek, German, French, etc.  just by hitting alt-shift.  For Greek the consonants and vowels are pretty straight forward (though a couple are different from BibleWorks), but I always forget if something needs a shift, ctrl, alt-gr, etc. for the accents. So, I’ll typically hunt on the internet for it, but never seem to find it right off.  I found this handy Windows Greek keyboard map and thought I’d post it for anybody else:

Gk-keyboard-cheat-sheet