Welcome aboard
You can't get the twin pack in the UK, but you can get to Amazon UK via
http://www.subsim.com/store.html (so this site gets some 6.5% of purchase price to keep running - very important) and buy the Focus Multimedia edition of SH3 with is starforce free and patched to 1.4b.
Maybe Onkel Neal should buy a job lot of the twin-pack and flog it on ebay to Europe
...now Grey Wolves, oh yes, and every other mod going - your specs sound like they can take it all. Twice!