You could always go the super cheap route: Get whatever lead sled road bike shows up on Craigslist for under 30 bux that you can stand over without mangling any bits (your bits) and ride it for a few weeks to figure out what needs to change to be a perfect fit for you. After a few rides on the cheapo you'll have a good idea of what you need in terms of fit and something to use as a comparison. Or you just might end up with exactly what you want.