Thanks everyone for all the great comments.
Since I first took the photo's as I have said above some of the plants did not look so good. I have tried to save as many as possible but some ended up getting removed.
I decided that if I was going to spend any more money then the best thing would be lighting, This was going to mean a few modifications being done to the hood to get them to fit. I ended taking a disc cutter to the hood to remove the original ballast that came with the tank as It was molded in and was in the way, I also took out the other T8 Unit that I had fitted (This will be going into another tank). The replacements is a Duel 36W T5 Compact Setup, This has made a massive difference to the tank and all the plants are now pearling away very happy.
This has also enabled me to replace some of the plants with some that required higher light conditions, I have also re-arranged things slightly and re-instated the driftwood. Here are updated photo's of what the tank looks like as of tonight.


The mesh that you can see in the side has java moss in between it and all being well with create a nice wall.
thanks again all for the comments
mark