I currently have a 10 year old Scott Tampico MTB (cost me about £320 back then) which has had light use and is in excellent order. Started using it for my 5 mile commute a couple of weeks back so have fitted some Scwalbe City Jets which gave me a great improvement in speed vs effort I'm now thinking about replacing the Rock Shox Jett front forks for a rigid type, since i've been getting a bit fitter i've really noticed them bouncing around when taking off quicker so they must be slowing me down). I'd be fine doing the work as i'm a practical person just have no idea what type of forks i need??? Anyone help? Would pictures of the bike help?! My dilema is if i should spend the money on this bike (tyres and spare tubes etc already cost ~ £40 - i can out these on the wifes bike if i decide to sell it!) or just get a new hybrid which will already be sorted and more likely lighter etc.... The GT Zum 2 at Halfords looks ok and not too expensive... Did consider a Carrera road bike but i've found an alternative commute that goes across a bit of heathland so a roadie wouldn't be totally suitable!