Well, your new computer is certainly delivering the visuals!
I still can't make up my mind about the 146. There's no doubt that it's a great add-on, judging by the comments at Avsim, but I don't want to spend money on new aircraft and then not have time to fly them all, as was the case in P3D and FSX. So much has come out for MSFS in the last few months, including another variant of 'a certain airliner' yesterday from PMDG - it's the child in a sweet shop situation. The 146 is very tempting, though, particularly the 300 cargo version - right up my street, that one.
I agree with you about Just Flight, and cannot praise them too highly. The number of improvements and fixes they've implemented for the Arrow alone shows a real commitment to their releases. Their VC-10 would be great, as we are getting a lot of modern glass-cockpit airliners at the moment, and I reckon there is a large market for the retro jets.
Happy days ahead in MSFS. I absolutely love this sim.