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We've re-written the the homepage altering things along the way and its now moving them back up the rankings, form page 8 to page 4 in 48 hours.  Any suggestions to get it up a couple of more pages?

Thanks for the advice guys, we are going to re-write the homepage paragraph and alter the meta information.

This is a tricky one for us as mentioned we have 'in-herited' this seo but it continues to struggle.

Any other external seo ideas you may have would also be greatly appreciated.

Tough question to anwer confidently and with any solid evidence.  The best I can give you is in my own experience the past 4 of 6 clients whcih are relevant to the conversation have non-hyphenated urls which ranked slightly higher in google.  The combo we used was to H1 tag to match but using spaces which I guess gave google a little more to munch on.