Yeah it's hard to beat FMS for getting a feel for the Simulators and basic flying.
I'd give the Smart Propo setup a shot.. it's simple and works great..
worse case you are out $5 for the cable.
When I get around to buying a sim I'll get Aerofly Pro Deluxe (AFPD)
As for what flys better? G3 or AFPD? I can't say.. people will argue both sides to death.
AFPD about the same $$ as G3, comes with a USB adapter and the add-on's are free.
Yeah G3 comes with a tx box but I'd rather fly with my Tx anyway.
screen shot
http://www.aerofly.de/ssh-20-lg.jpg
web site
http://www.aerofly.de/index.html