4 things ...
ONE (2nd update)
If the wikipedia entry is correct then you are in a better position than I was with my MacBook.
- The DVI port was replaced with a mini-DVI port.
- A mini-DVI to DVI-D adapter is included. A mini-DVI to VGA adapter is available.
- A Mini DisplayPort was added in addition to the Mini-DVI port. This now allows the Mac Mini to work with the new 24" Apple LED cinema display directly and the 30" HD Cinema Display using a Mini DisplayPort to dual-link DVI adapter.
- Both mini-DVI and Mini DisplayPort connections can be used concurrently for mirroring or extending.
Apologies if I have mislead you with this paragraph:
Using the mini-DVI to VGA would seem to give you the analogue signal you need to relaying to the second TV via an RF cable. You need to double check this mini-DVI port's VGA capability on Apple forums.
I connected my wife's HP to the BV8 VGA port and I discovered that this signal is *NOT* relayed via the BV8 Active Antenna to link rooms. I also tested her HP's S-Video output connection to the BV8 and thence to the link room, which worked, but all the colours were washed out to shades of grey.
You could (depending upon distance) even look at a long DVI cable, I once had one in the UK that went about 10 metres.
Which of these two ports did you say you are currently using for the main TV?
TWO
I think the wireless options need to be tested carefully.
I have found BeoLink Wireless 1 to need careful placement. Initial I had it at spot A and had problems, then when my BV8 arrived I moved it to spot B and had more problems, based on another thread I have kept experimenting and now have it in spot C which is producing better results -- important to note that most of my wireless difficulties have come from kitchen equipment: microwave radiation and metal freezer cabinets, so given your target location is the kitchen this is something to consider.
Also wireless extension for slide show presentations may have been design for a less demanding bandwidth that TV shows, whereas the wireless SCARTs seem to be more in the right design arena/area.
THREE (1st update)
I recently saw on an old thread a discussion about an HDMI to composite or component video converter - I think it was one of the Gefen products (quite a few BeoWorld members use and recommend Gefen). This may be a route you could take. If I can find the thread again I will post a pointer for you.
http://www.gefen.com/index.jsp
Examples of Gefen usage:
http://forum.beoworld.org/forums/p/30775/246140.aspx#246140
And here is the original thread I saw ...
http://forum.beoworld.org/forums/p/17358/128537.aspx#128537
FOUR
If you were going down the distributed PC desktop path etc, I would think that an Apple TV might be more sensible if all you want to access is a collection of stored movies. But if what you want is the desktop, applications, etc then a second MacMini with remote desk top access may be a more expensive option.
First B&O (1976) was a Beogram 1500 ... latest (2011) change has been to couple the BL11 with the BL6Ks *sounds superb*