Sorry franglix if my comments came across harsh, it wasn't meant that way and it wasn't a comment about you or your site.
I didn't look at your site so I have no idea what it looks like and certainly didn't therefore notice any SEO done on your site. I didn't even notice you had it in your sig. (but now I will pay you a visit of course

)
My comment was purely based on the principal that web designers should worry about validating code (if they want to be taken
seriously by other web designers) and SEO's need to worry about getting sites to the top of search engines. There isn't (yet) any proven correllation between the two. Frankly I couldn't care if my site validates or not as long as it sits OK in the SERP's.
To be honest I haven't even bothered to SEO most of my own sites and a lot of pages are hanging around in supplemental results (it's enough just to do the homepage) but I make a living so I am not worried about it.
The reason for this is the market was WAYYYYYYYYYY too competitive for me when I started.
You say for example 'Hertfordshire + birthday + cakes' where there are only 66,000 results, whereas I am having to go for stupidly impossible terms like
free advertising of which there are 333,000,000 results on Google.com (I am currently 12th on Google.com and 2nd on Google.co.uk, dropped to a pathetic 15th on Yahoo.com and 2nd on Yahoo.co.uk from 386,000,000) I wish I could target those lesser phrases, but I guess I made my bed.....
With my results for this term alone (there are a lot more) I think it makes me pretty reasonable at SEO?
edit>
Ok, I looked at your site

it appears it's in a foreign language.... so it's not much use to me, nor me to it. hehe.