Macbook white 13 ( unibody) not the Pro vs HP 4510?

HI,

i know you are board from hearing the same old question but any ideas or sharing your experience would be really appreciated.

i am running my Traktor Pro on a very good spec Pc computer but my laptop is not up to the level to run Traktor smoothly.

I am thinking of buying a new laptop (not just dedicated for DJing as iam not a dj in profession ) and i am somehow on the budget, i like mac though i have never used one before, and i can afford the following model :

Mac book white :

- intel core 2 due 2.13
- 4GB ram
- 160 GB Disk
- 13 inch scree

or i can pay half the price on this :

HP 4510s( business laptop):

- intel core 2 due 2.2
- 4gb ram
- 300 GB disk
- 15 inch screen
- 7 hours battery

Does any one have any experience on any of the above ? will both system be able to run Traktor pro smoothly ?

Any help/ideas/suggestions are really appreciated.

Thanks,