The lack of native import for SVG or any other vector-graphics format is really lame.
I looked at Gliffy but the text formatting is too limited for my purposes.
I've been using Google Draw but can't export PNG to a sufficiently high resolution.
This is a Mac shop, so Visio is out.
Tried InkScape, the X11 UI is a pain but if I export at 300 dpi it's OK.
Illustrator, I'd rather avoid Adobe if possible, their products keep getting buggier and harder to use.
Anything else to look at?
