Thank you Bradley. I've managed to reduce my menu today to just 1 sub category per main category and it's brought the links down a lot - I'm going to see what other links I can reduce as well. I've actually got a blog (rpamx.co.uk/blog) that I will be posting regular content onto to try and drive more traffic.
The blog is wordpress, I hardly use the magento cms.
If you have further experience to share with magento I'm sure it will be of benefit to us all.
thankyou so much for replying.