If those dates on your site are accurate you sure do get out a bit!
All that since April? I can see why you're running out of space (although in fact you can probably reduce your photos to 800x600 as that resolution is fine for viewing a pic on screen. Some of your photos are a bit too big and take a long time to load even on my broadband connection).
That model railway looks interesting. Got any more photos of it?
Welcome to the forum! My Dad has a few photos of the Swanage Railway on his website, http://www.the-siding.co.uk You could always try PM'ing him and asking for permission (his username on this forum is 'The Gricer').