The best you could have hoped for and nothing to feel guilty about - we all love it when someone gets good news.
It would be great if dad could get away for a holiday now - he may not feel like it for a good few weeks or months after the op. Also, if he is still sexually active, lots of opportunity to do what couples do, but he perhaps wouldn't want to discuss that with you!!! Also, time to start on the shopping list - there are a few threads on here with helpful suggestions but I would start with:
- tracksuit / jogging bottoms with a drawstring waist in a dark colour (M&S make some in navy or black sweatshirt material)
- pyjama bottoms with drawstring waist or loose elastic
- underpants (not boxers) in a size larger than he normally wears
- a bucket to stand the night bag in
- a waterproof sheet for the bed (preferably not PVC - they make a decent one in terry cotton at Dunelm) - or disposable bed pads
- incontinence pads, unless your GP / district nursing team confirm that they will provide these - most seem to rate the Tena for Men as most comfortable and Tesco, Asda etc often do BOGOF. Don't buy the ladies version by mistake - very uncomfortable and all the padding is in the wrong area
Others will come along with their own thoughts on what to buy