Start by making sure your room is up to snuff, as this will always be a limiting factor.
Marbles, have you not seen the pictures of my room??!
I have 18 DIY acoustic panels in a small room of 10ft wide, 9ft height, 15ft long. Warner said it's not enough, so I'm going to add some more DIY bass trap built with R13 fiberglass rolls...
My initial system will looks like this:
RWA modded SB3 digital out-> Tact 2.0S -> Bryston 4B-SST -> HT3
I will get use to the sound first, then I will upgrade my Tact with Aberdeen's power supply, then I will get a few amps for home-trial and pick the best one, then I will upgrade my SB3.. that should keep me busy for a year at least