So weve gone through a period of rapid expansion here at work and were actually getting one more person on top of the others wed planned for.

This is all stretching the finances as you could imagine in terms of sorting out laptops and stuff, so instead of getting another laptop from Dell Im going to use the Macbook Pro weve had sitting in storage since December for myself.

What Id like to know is what options are there for dual loading OSX & Windows. We dont want Vista on there just XP Pro SP2.

I know there something called Boot Camp and something else called Parallels but which is the best?

Boot Camp is dead easy, made by apple so it would be
http://www.apple.com/macosx/bootcamp/

I know there are other but I would give that a go
When I need a laptop again I am very tempted to get a mac book and duel boot

May I suggest giving the MacBook to someone who may get more use out of it?  i.e. do you have a design department or similar?  A designer may find they have some Mac software that that they may want to use in future.
Bootcamp works fine, used it myself on a couple of jobs, and it works perfectly.  

We out source most of our creative stuff, Im the closest theyve got to that and even then I use a PC-Windows based Adobe suite.

We bought the Macbook Pro as apart of a portable audio recording kit we have, so its OSX features arent being wasted - just we have Office & XP on the shelf and our Adobe suite is Windows based so might as well use the Macbook for both normal office stuff and the audio stuff.

Ill give boot camp a go.