Your Opinions would be welcomed

I have a 4"/100mm Celestron Refractor with EQ 4 Mount (drives to both Dec
and RA). It has a home modified bracket that supports a star pointer at the
same time as the finder scope.

After several years faithful and very enjoyable service I am ready to get
something new. I spend most of my time on the deep space objects and have
modified a web cam to fit some of the lenses to allow some form of PC
integration.

I have 2 thousand pounds to spend and would welcome your opinions on what
(and why) I should get next.

Thanks

David