This is inside final payment allready so unlikely to honour price drops allthough upgrades are possible.
We got allocated an I for our K gty booking so prices need to drop over £50 for us to move cabin now but if they do I will try for another upgrade.
I think price drops might be via TA only, they have done this for the Jewel baltics both NCL sites are a lot more than the TA offers
There is sometimes some rock bottom pricing in the last few days direct with UK NCL, we got 2n last year for £59pp inc tips. but if you have to fly that makes it a bit risky. Consider the 8n 21st, out from Rotterdam(Amsterdam) back to Southampton, stretch the flight costs a bit( if you have the holland option) only available through the UK at £521(G) but cheaper cabins may open up.
We decided to take the K GTY at £299 a while back(direct to test out my NCL personal cruise consultant, v.good) and our friends have booked a HC BB through the US they were starting to sell so needed to get booked.
I would try to hang on a bit, if you can take the risk the flights will stay reasonable. there may be some offers come through on the suites, or tag on the 2n cruise to the 5n one still get home on the weekend.
Have you checked Ryanair into Bournmouth? £1/£10 options from Glasgow if you can travel light,
http://www.skyscanner.net
Ryanair, Sat 23 May 2009, FR 5952 PIK-BOH, Fri 29 May 2009 FR 5951 BOH-PIK, £2.00 Price is live
Could book these flights and wait on the cruise price, only lose £2 and CC charge(free electron) if you miss the cruise.
20m(£50ish) taxi ride to the port.
http://www.airporttaxis-uk.co.uk/Bournemouth/quotefrom.php