Pizza deserves all the support it can get. Specially as great as yours. Making your own is the step I've yet to have reached myself but I hope I get there :)
I'll definitely give Inkscape a try. I have this very simple idea for logo but even the simplest things can be hard when trying totally new things, I've found. I might get back to you on this subject when I get to try implementing it.
Okay, cool! I hope you enjoy Inkscape as much as I do, it opened my eyes to a new realm of possibility.