In reply to puppythedog:
I would advise either you get a pair of second hand axes with view to selling them on in a few years when you know exactly what you want OR you go straight for an axe you can climb leashless with now and won't need upgrading.
If you go for the former, flys, alp wings,etc will be fine and you can get a pair for about 100 quid second hand. The main down side to this approach is that you may end up with axes that need leashes and I think you'd be better going straight to a lanyard leashless system.
If the later you'd probably be best going for something like the Viper / Quark / Matrix Light etc, although I think opinion is slowly changing to axes like the nomics being preferable. Really you'd need to get to a shop and swing a few. In this class I'd get the Vipers personally. I definately would not buy new axes now a days that do not come with a grip rest and a lanyard attachment point in the ferrule / spike on the bottom end of the shaft.
I don't think there is any point buying Flys new now a days, the design has been superseeded. Yes they work but why not get something that work all round better?