ATI, with the AUD being so good against the USD www.summitracing.com have them for a good price.
918598 - STREET: R33 & R34, P/S, A/C, Alt Up to 500HP All Pulleys are in OEM locations. Power steering pulley is 15% underdrive, alternator and water pump are 5% underdrive. A 10mm shorter belt is required for power steering pulley. Damper shell and pulley are aluminum with steel hub. Be sure to check your crankshaft for roundness. If it is equal to or more than .001" out of round, you will need to adjust for proper damper press fit.
http://www.summitracing.com/parts/ATI-918598/
917753 - STREET: R33 & R34 P/S, A/C, Alt, 600–1000HP Damper includes new aluminum water pump pulley for clearance. A/C belt is a 25% overdrive - DO NOT USE BELT IF RACING! 15% underdrive on power steering, OEM size on water pump.
http://www.summitracing.com/parts/ATI-917753/
Cheers
Johno