My first suggestion would be the Samsung 2TB Spinpoint F4 Eco Green:
http://www.newegg.com/Product/Produc...82E16822152245
They are incredibly fast for an 5400rpm drive and very reliable. Not to mention very quiet.
The next best would be the Seagate counterpart:
http://www.newegg.com/Product/Produc...82E16822148681
Don't worry about speed with those hdds.
1) you have your SSD
2) the bigger the hdd, the faster it actually is. those 5400/5900rpm drives above can nearly equal an average 1TB 7200rpm model in speed.
P.S.
Personally i would advise against WDs caviar green series. They are way slower than those two models above.