Someone has probably asked this before, but does anyone know of anywhere in the UK I could get these games?

As already stated in my introduction thread, I have VI to X-2.

Get an emulator from nes and snes and download them. There are many pages that have those games, since they are very popular.

FFI+II can be found in either Final Fantasy Origins or Final Fantasy: Dawn of Souls. Final Fantasy IV + V can be found in Final Fantasy Anthology. You can also obtain FFIV through FFIV: Advance. FFV: Advance will probably be released at the end of the year, as will the upcoming Nintendo DS remake of Final Fantasy III.

Thanks.

Does anyone know the exact release dates of the GBA versions of V and VI (US or PAL) and also the DS remake of FFIII (US/PAL also). A silly question it may seem but release lists are so inaccurate it's beyond laughable. So any experts care to inform me?

V is supposed to be released on November 5th, if I'm not mistaken. VI has yet to get a date.