I am on a venture to look for the best...

I am on a venture to look for the best broker with suitable trading costs. I have to say that TMGM is pretty much up on my list. I know that they have classic accounts and edge accounts. Trading cost-wise, can anyone pointer which one has the best deal of all?

Normally trading accounts with low spreads always charged commissions so this is very important for me and they tend to make the cost higher than standard if you aren't careful.