So what else will I need with this setup?

I've figured the pricing out and TSU9200/RFX9200 and TSU9400/RFX9400 are cheaper by about $200 and the 9200 looks like it will work out better for my wife. Not to mention she's not liking how much this is costing, haha. Of course I told her she'll like it in the end.

So I'm guessing I'll need some IR emitters, or does the RFX models come with some?

I'll post a schematic soon. I'm trying to figure out how I'm going to make both HDPVRs available to both TVs and not cause conflicts.

You probably need to spend some time deciding how you are going to control these devices. You listed at least 2 of 1 device I am not familiar with, this may cause some issues that have to be dealt with.

Decide what control methods will you use to control the devices before deciding on what extender model you need, if at all? There are other options.
Do you want control of the PC/Mac?
IR sensor, RS232, IR direct connect, TCPIP or more likely a combination of some or all?
Do the devices all have discrete codes or are some toggles for commands, and how will toggles be dealt with?

Our TSU9600 works fine out on the back deck and the access point is in the basement, no wifi issues here. I don't believe any of the TSUXXXX models can control automation devices directly; they can through other methods.

Just listing some of the questions I would have asked myself before I started, if I'd known what to ask. Spend some time thinking the whole plan, and any future ideas you have today, this will start you down a path that doesn’t end up at a dead-end before its time.