Alienware x51 Upgrade options

I bought an Alienware x51 R1 about a year and half ago or so. At the time of purchase there were all kinds of upgrades offered that I passed on, knowing I could upgrade myself down the road. 

The system before and after:

Intel core i5 3450 (Ivy Bridge) (Upgrading to Intel Core i7-4770K)

8GB RAM (upgraded to 16GB)

Invidia GTX555 (upgraded to GTX 660ti)

Upgraded the stock fan and heat sink with the Zalman CNPS8900 Extreme

That leaves me with two last upgrades that I'm having a very hard time finding any info about, the Bluray drive and SSD.

When I call Dell to see what the model numbers of the originally offered equipment was, they cant come up with anything. Does anyone know what they were? Or happen to know other units that will work?