I mostly have 18v Li-on Dewalt cordless - drill, impact driver, angle grinder, circular saw and dab radio - all excellent, but I really, really like the angle grinder with it's soft start and brushless motor. I have a 240v sds dewalt hammer drill/chiseller which is very useful for restoration work on our house. I also have an old but excellent 240v dewalt mitre saw that I use a great deal, an old but serviceable 1/4" 240v dewalt router, a very good 240v bosch multi-tool that's given great service over the years and a 30 year old 240v 500W b&d hammer drill which I still use occasionally. I've also just had a Triton TRA001 router as a birthday present (how did she know??) which I have yet to use but I'm building a router table to house it. I also have a 240v metabo duo orbital sander that I've had for years and has been superb but now starting to show its age. Finally an old 240v makita jigsaw which I still use and is still excellent.
If I could afford it I would love to upgrade the circular saw to 54v Flexvolt as I could use the battery(ies) in all the other 18v tools; the standard 18v circular saw is very good but I sometimes need more power and depth of cut, especially when I start the workshop rebuild. I would also like a router trimmer (the dewalt looks fab but budget may reduce my expectations to a katsu hand trimmer for now).
And I dream of a 240v sliding mitre saw as, after a splendid afternoon spent in an Axminster store, I was really taken with the 240v Makita LS1219 (I mentally spent thousands that afternoon but came out with only a catalogue
).
Please bear in mind that I've built this little lot up over a number of years and I started many years ago with just an 18v NiMH Makita drill that is now down to its last, rather tired battery but still useful as a backup when I need 2 drills e.g. counter sinking to save time changing bits.
I believe a new battery technology is being developed called carbon-Ion technology that will next power our tools but when it will be available I've no idea....
Hope that this helps