You should visit their website..

The BDL is live and kicking still.. IT has a hinged floorplate, monte carlo stock in gloss finish and iron sights.
The ADL was a stripped down model 700, a bit less expensive and a flat finish.
The CDL is the most costly and has a satin finish with no iron sights, this is my favorite one and I own one in 30.06 that I love..

The SPS is specail purpose synthetic.. Really the only major difference between SPS stainless and SPS blued is.. Well.... it's stainless...
Both are inexpensive but yet great guns, the classic 700 bbl'd action is a great one to start with.
The stainless is a matte stainless finish..