He's using a scope screen, so maybe he should consider both the RS-46 or preferably the RS-48 over the Sony hw50 since he is so heavy on just movies.
Also, I got spoiled by the JVC's native sharpness in HTPC reading, once you go sharp you stop playing harps. I have never had a Sony hw50 in my home, so I can't say how it matches up in this dept, but I'm assuming it's a notch down. For movies, I'm sure it's fine as Zombie says with the RC and even without it, it should be ok. I even stopped using the Benq w7000 to read text because the JVC is a hair better. I do a lot of reading on my PJ screen now, with every other PJ I found it tiring.
I would think even the RS-46 + Darbee + other sharpening gives the Sony a run for the money. If you can really get the same sharpening algorithm or very close just by buying a Sony s790 BD player, then you have the same thing on the JVC's (RC on JVC). Yah, the RS-48 is better than the RS-46, but the RS-46 is quiet a bit cheaper and you lose the CMS + E-shift 2.