Before I jump into what I'm posting I should add that I'm not living in the UK at the moment, moved out to Marseille, France with my g/f a month ago, anyway, now that details out the way, I will carry on..
I picked up some of the Alien/Aliens Konami ships in the UK, a comic store in Cardiff had quite a good collection, and I got the Nostromo and the Dropship for about £10 each. They also had the Sulaco (the rare one of the set, typical, as its probably the most popular) but the big fat rip off comic guy wanted £30 for it! £30, for one! If I'd have had the money I probably would have bought it but I resisted.
Lucky I did, after a couple of weeks of exploring the lovely port city of marseille that I now call home I found a shop down a backstreet selling all the ships for 7 euros each, including the Sulaco. Bargin! Also picked up the lifeboat from Alien. May buy the Nostromo again as I've left my entire collection of MMs.Furutas and other stuff safe in the UK.
Sorry, just thought I'd share that, if you lot haven't picked them up yet, do try, they are great!