MacBook Pro or Mac Mini as music server

Currently have apple extreme server. Also using the Olive Media Olive 4HD and Olive 2.
Thinking of adding either the latest Macbook pro or the mac mini as a music server for my cd collection.
Which of the two would be better suited to my task ?
I'm leaning towards the macbook pro 13" with 2.3 GHZ but then at almost half the price the Macbook min 2.4 is a steel but i wouldhave to add keyboard, a monitor and a mouse so cost would be close to the macbook pro.
Anything else am missing here ?
For the Dac, i plan to use either an I-Nova or a Bel canto designs dac 2.5. An esoteric D-07 is also not far fetch.
Would greatly appreciate some advice as i'm just starting out on this hobby (computer audio) just now.
Thanks guys-