Thanks for your reply... are there any cheaper options to achieve a similar result... and I'm just trying to get my head around the connections.. what connections do I need to utilise to get the maximum possible number of analogue outputs? and is that 28? Or can there be more?

I read on the web page that 

- AES/EBU: The UFX provides a professional AES/EBU I/O working up to 192 kHz.
- ADAT: Two 8-channel ADAT I/Os expand the UFX by 16 channels available simultaneously with the analog channels. They can be used to connect two 8-channel AD/DA converters, mixing consoles, or to insert effects devices. Both I/Os support sample rates with up to 192 kHz (S/MUX4). Using two external converters like the ADI-8 QS, the UFX will provide 28 analog inputs and outputs, 20 with a sample rate of 96 kHz, and still 16 at 192 kHz.
- SPDIF: The second ADAT I/O can be used as optical SPDIF I/O, making the UFX connections even more flexible.

Thanks again, the console that I have coming is likely to have up to 30 channels, maybe more, depending on the number of stereo modules I can get with it. So Im just trying to get an idea of what I need to do and to make sure the UFX is the right interface for the job.

Many thanks

Ok, thanks.. Is an extra 16 analogue outputs the maximum that I can add onto the UFX?