Hi Paul
I was in the same position as you are earlier this year. I have not been into astronomy for quite a while. I now have time and the money to get right back into it. It has been a long process of elimination deciding on the right OTA and mount combo.
I would suggest you do a lot of reading and comparing the specs on the different equipment that is out there. I had a list of what was important to me and tried to find the equipment that met those requirements.
You have done the right thing asking questions on this forum, there are plenty of people here who have extensive knowledge and experience with astronomy equipment.( unfortunately I am not one of them.) maybe in a few years).
Setting a budget was one of my first issues, it seams to keep growing, there is so much cool stuff out there it is hard to know when to stop.
I hope you find the answers you are looking for. There are some great people on this site who are willing to help.
Cheers
Phil