Thanks, guys. Michal, the color balance is more due to the post processing in Photoshop as the original scans have a very redish cast to them. The lens on this camera is 75mm f/3.5, so it does not have the best light gathering ability. I am using a Epson V500 scanner, so you night say that my equipment is pretty low budget! But I must say that I am pretty happy with the results thus far - especially with the equipment on hand - and it has encouraged me to try and improve upon what I have already done. The second roll has been sent off to the developers so I will be able to see what impact stopping down the lens has had.
Here you can see how the original scan looked compared to the processed one: