converter for wide angle lenses on DSLR

Hi,
I'm soon going to be moving over to digital (D100) from film (F100).

I have three prime lenses, 24MM AFD 2.8, 50mm AFD 1.4 and 180mm 2.8

Now, as I understand it, with the focus length multiplier in the D100 of 1.5 x, I will still get the perspective of the 24mm lens but the angle of view will be equivelent to that of a 36mm lens.(please correct me if I'm wrong)

Is there a cheap(ish) quick fix like a coverter of some kind to retain the angle of view with the 24mm or would you have to get more expensive (wider) lens

Thanks,
Brundle

BTW, with the above post I meant a cheap fix as in a stop gap to comming up with a better (proper lens) solution, once the balance of the D100 has been paid for!!

Thanks,
Brundle