Rock - Our robotic took nearly two hours. Had residual pain for several weeks in the scrotum and up. Also had a preexisting hernia that contributed to the pain. I know one of the regulars here (Spinbiscuit) also dealt with double hernias and pain. That's one possibility to check out - as sometimes hernias are caused by trauma during surgery (a common thing, not incompetence), and they can also cause that dull ache.
When husb. was dealing with the early pain, our surgeon prescribed a heavy-duty antibiotic along with two different pain/sleeping meds - those really seemed to help.
Husband age 65
PSA on 5/1/06: 4.2 (had doubled in 13 mos. and rising monthly)
DaVinci Surgery 8/2/06
T2a (at biopsy)
T4c (at pathology) w/cancer cell leakage into fatty tissue
Post-Surgical PSA on 10/3/06 - undetectable!
Update: 11/1/06 - perhaps bladder neck involvement; 30%-50% chance of recurrence
Future: PSA tests twice-yearly for now