I think the AFS wheels are fairly heavy, but I haven't found out just HOW heavy yet.
I did, however, discover a web site with lots of wheels listed and their weights;
http://www.wheelweights.net and
http://gti-vr6.net/library/wheels_tires_brakes/wheels_weight/wheels2_17.html
Here's an excerpt for the 17x10's (last number is lbs);
Duralight Cast 17x10 18.0
HRE 835 Forged/Spun 17x10 18.0
Kinesis K5 Forged/Spun 17x10 18.0
Lite Speed Billet/Spun 17x10 18.0
Racing Hart Tracer Cast 17x10 18.0
Tecnomagnesio MT 5B2 Cast Mg 17x10 18.0
Fikse FM-10 Forged/Spun 17x10 18.5
Fikse FM-5 Forged/Spun 17x10 18.5
Fikse Mach 5 Forged/Spun 17x10 18.5
CCW (not hub or lug-centric) Forged/Spun 17x10 18.6
Fikse ARO Forged/Spun 17x10 18.9
Speedline Race Cast 17x10 19.0
Kinesis K20 Forged/Spun 17x10 20.0
Monocoque RT Cast 17x10 20.0
Compomotive PS Cast 17x10 20.5
Hart Sport Diablo Cast 17x10 21.0
Hart Sport Mirage Cast 17x10 21.0
Hart Sport Odyssey Cast 17x10 21.0
HRE 535 Forged/Spun 17x10 22.0
Kinesis Supercup Forged/Spun 17x10 22.0
HRE 547 Forged/Spun 17x10 23.0
Mackin Gewalt Cast 17x10 23.0
Simmons F-Series Cast 17x10 23.8
HRE 540 Forged/Spun 17x10 24.0
Manaray SP Cast 17x10 24.0
HRE 545 Forged/Spun 17x10 25.0
Speedline Street Cast 17x10 25.0
Ruf Cast 17x10 27.7
HRE's and Fiskes are about $1,000 EACH