Well, think I've found the culprit!
Driving home and felt like my car was very heavy when pulling away, drove about 15 miles on motorways (20 - 30mph due to traffic), took my junction, came up to a roundabout and smelt a very strong smell of brakes, pulled into my driveway. Inspected driver front, looked a little dirty but nothing major... went to the passenger side, holy hell... never seen so much brake dust! Went in closer for a sniff... yup, cooked brakes!!
Caliper is stuck on and now i need to wait until tomorrow before I get can get it booked in. Something do you think is fixable or will I have to go down the refurbbed calipers route? Hopefully my disc isn't warped, it's only a few months old....