I've got a Haro Group 1 SX 24, and a Felt Sector 24. Both stock with the exception of some ODI lock-ons, Kore chain tensioners, and an Avid brake on the Haro. I also got some Maxxis tires that I'll put on the Felt and swap the Tioga Comp IIIs to the Haro when the current tires wear out. Oh, Tyres to you Aussies.
[edit] Some of the guys I race with are 40+, and they still ride 20"s.