Yeah fox - in my particular case, a good mate of mine who runs a local bike store (LBS) has been harping on to me for months to get a better set-up. My position pretty much mimicked that of my mate in the photo.

I've just undergone a tri-specific change to my set-up, and have blogged about it recently (and have bored most people to tears with updates since). In my case, the change-over was relatively simple as my Kestrel has been designed to easily convert between the two bike positions (as explained in my blog). Some of the Cervelo frames are designed in a similar fashion.

As others have mentioned, it can also be done with road-geometry frames as well - but it's not as simple as just putting on a pair of aero-bars (as the aforementioned photo illustrates). Saddle position, stem length/height, crank length and bar heights can also come into play, depending on the original set-up. The basic idea is to tilt the body forward and over the front wheel, but keep the same hip angle in relation to the pedalling position. Most basically, a forward saddle and lowered bar height can generally achieve this. If you're looking at that photo I referred to, my mate's bars are too high, and his saddle is too far back for example.

And Andy's right - Angela Milne is actually just riding a TCR Composite, which is more of a traditional road geometry frame, but with the correct saddle and bar position to allow an efficient aero set-up.

Incidentally, a lot of guys opted for a more road-geometric set-up for the IMOZ course in Port Macquarie as the hills were relatively more demanding than other IM courses (such as Forster and NZ). Melissa Ashton for example, was bugging my LBS mate in the last few months about what sort of bike she should use for the course. She eventually stuck with her Cervelo P3C in a standard aero position, but was dicing with the idea of using a Cervelo Carbon Soloist up until a month or so before the race.

Most reputable bike shops should be knowledgable enough to give you good advice on aero position. My LBS mate set me up on the wind-trainer for a few sessions, and we experimented with different set-ups, aerobar types etc... Valuable advice on set-up can also be gained at sites such as Australia's transitions or the US site slowtwits. As Rooster mentioned, the Aussie mags also have articles on this stuff from time to time B)

Is it possible to hijack your own thread?