If you are just looking to do research now, and are interested in strength/endurance, I suggest you also look at Tren. It is about the best strength compound out there. Endurance athletes like it a lot. It also shoot blood pressure up really high though.
Edit: Dbol is a derivative of testosterone. Deca and Tren are both derivatives of Progesterone if I am understanding it right. Deca is really good on the joints. Also check out the short ester deca, called NPP. Strong anabolics of any kind can certainly result in high blood pressure. Precautions should be taken always.
In terms of steroids, Testosterone comes in several common forms
Test Propionate (short ester, quick acting)
Test Cypionate or Test Enanthate (Long ester, long acting compound)
Sustanon (Blend of short and long esters of Testosterone)
Each steroid you look at will have different side effects, different degrees of anabolism, different conversion to estrogen etc.