If you'd compare the Maxtor DM9 against the Raptor, the 'race' is very close imho.... However, if seek times are important to you, it's Raptor, half the normal mainstream product. If 'space' per $$$, Maxtor DM9 120g is 'sweet' ;)
My current config:
1) Raptor (os) SATA3
2) Raptor (swapfile...