Well everyone, I can safely say that the South Wales Main Line is effectively my back garden, and there is a signal right outside my house, so now and again trains will stop, although this only tends to happen if services are running late for some reason. A little morbid maybe, but if the train was to derail it would come crashing into my house. I will take a picture and upload on here soon (I have a good shot of a double-formed 175 stopped on the signal - rare, not many double-formed 175s booked). Rolling stock includes: 142, 143, plenty of 150, 153 (not so often), 158, plenty of 175s, 66s and HSTs (plenty). A new station is set to be built there soon, as my house is only about three or four minutes upon departure from Cardiff Central and the next station is Pontyclun, about twelve miles away.
During the night, one freight service that passes at about 3am literally makes me house shake! It's madness!
I also have the Cardiff City Line going across my house, it's further back and stretches across the South Wales Main Line before calling at Waun-Gron Park.