need the spec of the crystal/xtal needed to overclock VMU's

Right, I have succesfully overclocked my Dreamcast to 240Mhz, loving the improvements but want to do my VMU.

I know from my good helper -=familyGuy=- that I need a 7.2Mhz xtal/crystal but I'm having trouble finding one....

Is this right? (I've been told I need to know the frequency, (7.2Mhz- got that), the stability (measured in ppm), and the capacity (measured in pf). Anybody know exactly what I need and can get it from?

I've found these but don't want to order any incase they arn't right.
http://gb.mouser.com/ProductDetail/C...SJ%252bXN3c%3d

(theres a few more on that site but I'm unsure which I need)

Any help is appreciated.....

same here