LITE-ON 4x Blu-Ray (BD-ROM) Internal SATA drive $49.99 w/FS @ Newegg, Amazon

NOTE: This is NOT a burner or combo drive! It will only playback BD, DVD, and CD!

Newegg and Amazon both have the LITE-ON Black 4X BD-ROM SATA Internal 4X Blu-ray Disc Reader Model iHOS104 on sale for $49.99 and free shipping. The difference will be tax in your jurisdiction and/or shipping method you prefer.

Newegg charges me tax and Amazon does not so I'll be ordering it from Amazon. This will be an awesome drive for my HTPC.

The drive comes with PowerDVD playback software so you can play BD movies out of the box. Make sure you have a decent video card or chip to pair with this drive if you're expecting to play movies on your TV without stuttering or other annoyances.

Here is the factory page for the drive if you're curious about specs.