I have had prostate cancer,done with it and had the seed implants,that was LAST YEAR,HOWEVER,NOW I HAVE no SEX DRIVE AND MY UROLOGIST TOLD ME ABOUT THE PUMPS. I KNOW NOTHING ABOUT THEM,HOW THEY WORK OR WHAT EVER. IF THE PUMP IS THE ANSWER I AM FOR IT BUT DO NOT KNOW WHICH TO BUY. I NEED HELP! I AM 70 YRS OLD AND STILL READY TO GO.