BiWiring vs. BiAmping, ?Y-splitter?

I just purchased a 3-channel Cinenova (300WPC) and I have had a 5-channel B+K 7250 (200WPC) since new.
My fronts (R+L) are ML ReQuests (BiWireable) and the center is a Logos. Rears are (junk) Bose (space problem, Scriptsi which I have in the box won't fit to the room).

Here's my question:

Would a bi-Amp configuration with the 300WPC (Cinenova) to the high pass and 200WPC (B+K) to the low pass on the ReQuests be the optimal set-up? (My cable at present is MIT terminator 4, still using the factory brass jumpers on the ML's until I decide on this)
Also, would a Y-Splitter be the best way to achieve this "optimal" setup or would the whole thing work more cleanly with 300WPC with jumpers or simply bi-wired?

My B+K Ref-20 only has single outputs so I (think) need the Y-splitters to bi-amp, right?

Is there a better setup I haven't considered?

Thanks for input,

I would not bi-amp using different amps because it will be hard to keep a smoothe transition from bass to highs do to differences in input sensativity, impedance, and tonality. As for bi-wiring, the way MIT's are made there is not much advantage bi-wiring because one of the things the networks are doing is filtering back EMF which is the main reason to bi-wire.
Thanks, Duane.

Any other suggestions?
The only true test is to try it. I own a 100 watt/channel tube amp (McIntosh) and I bought the 50 watt/channel Audio Aero tube amp so that I can bi-amp my audio Aero Cd player into another room that is, at the moment, under construction.

So, instead of waiting, I bi-amped both of them to my Kef Referance speakers. The 100 watt amp goes to the base and the 50 watt to the mids and highs.

Sounds Great!

(more 'filling', too....)