I am a 49 year old, hard training bodybuilder. I do not wish to take steroids, is there a reputable
alternative that will give me a boost in the gym and possibly possibly in bed?

My personal favourite is Tribulus combined with Auena Satiua. Always make sure the product you use is standardised for at least 40-45% saponin content, which is the active steroidal compound. I feel Tribex 500 and CNPs Pro Test booster are possibly the best products around at the moment. Unfortunately the availability of these products may be short lived, I have heard that the powers that be are going to ban Tribulus.