Thanks everyone, yeah I am trying to nail down the dates that I can free myself up for the trip so that I may be able to book it before any price increase...

one other question, I have seen also ppl mentioning the fuel surcharge and some sort of luxury tax for flying on BA and via LHR? Is there a more comprehensive list of the top most "Costly" airports to fly through and what airline typically charges more fees/taxes? (I suppose that would be route dependent...??)