Have visited both the Harman and the E Club tonight; I'll feed back as others may be interested in the future.
The Harman is fine - with large ish and private meeting room. They have pull down screen for showing presentations.
The E Club has a large meeting room in their basement but... because of the time of year I want it they can offer a really spacious room just inside from the terrace that leads to out door restaurant, gardens and has sofas and comfy chairs as well as tables and chairs plus an area for drinks etc.
Will check out the bar near the Melody Bar - does it have a name...
The Culture Centre is ruled out due to anticipated bureaucracy...
The other above named bar I have issues with over whether or not my 2 gin and tonics actually had any gin them

Thanks for suggestions so far...