Thanks to everybody.
I will add that I would prefer to keep my Macbook at what is good at, namely running Reason 4 with ridiculous low latency

and I like to work with dedicated hardware as almost everybody here...
My aim is to streamline the workflow getting from production to recording to mixing and applying eq/comp/fxs in a fluid not interrupted movement, so to say...
I've got a certain experience and I already had a 12ch FW mixer/interface. I thought that configuration would be ideal, but NOT. The fact that the mixer DOUBLED as interface did not ensured the integration within the hardware boxes and the DAW.
On the other side, I lately use to record live 2.5K/303 performances into a micro-br (2tracks) applying a first layer of FXs there, then moving the stereo WAV to reaper to apply the final VSTs for mastering.
Obviously with this method I have to pre-mix inside JJOS and if I finally feel that I should nudge some frequencies from the snare hi-end, I have to get back to the start and REDO all the performance (mute/seq chains/live fx on the 303...)
I feel you on the fact that the VS series is older than the BR one, I unfortunately can't test the machines side-to-side BUT it's a long time that I collect info on them, especially for the VS series. I've heard a lot less about the BR1600CD... but it really looks fine, I mean, reading the specs and the few reviews on-line.
Finally, the tascam interface I was speaking about is not a firewire one as I said in the previous post:
http://tascam.com/product/us-800/Any thoughts?!?
PS
Thanks for your collaboration guys!