The Meyrick and the G Hotel are part of the group of hotels which has the d, where I work. I can ask the Ops manager to get rates if you can let me know how many going?
Best bet is the Meyrick as it's considerably cheaper and bang in the middle of Eyre Square. You'll pay for the G! Even if it's just food if ye can't find anywhere to take the stag, it shouldn't be a problem.