Converting MTB for the road

[xerxes]

To start with, I'd just fit the road tyres and see how you get on. If they are adjustable, you could make the forks pretty firm, so that the amount of bounce was kept to a minimum. Rigid forks would be a bit lighter, and possibly sharpen up the steering a little, but if you're going to replace the whole bike soon, I wouldn't bother unless you can get hold of the originals or something compatible pretty cheaply.