It should be a no-brainer prediction that one of the high-capacity optical formats will be included in an impending iteration of iMac (nice alliteration, huh?) or other new Mac, but its still anyone’s guess which of the two warring standards Steve-O will side with, and we won’t likely know until the next Macworld Keynote. (Blu-Ray is emerging as the dominant format, but you never really know with notorious contrarian Jobs.) But for those portable Mac users with ginormous storage needs, you don’t have to wait (well, maybe a month): Fastmac’s got a solution.

Fastmac announced yesterday their new slim, low-profile, slot-loading 2x Blu-Ray burner upgrade for Mac laptops. Now Mac users can enjoy burning 50GB worth of files at twice the speed, or watch a growing number commercially available BD movies like PS3 owners can.

The new burner is also Adobe certified, and supports Blu-Ray video disk authoring on Mac OS X. It works with the following models:

iBook G4
iMac G5
iMac Intel
MacBook Pro (17-inch)
Mac mini
PowerBook G3 Pismo
PowerBook G4 Titanium (667 Mhz or higher)
PowerBook G4 Aluminum

The burner works with Roxio Toast 8 Titanium or Adobe Premiere CS3 for Macs. It’ll be shipping within the month but is already available for pre-order on the FastMac site for a cool US$1K special introductory offer.