Any Helmet is better than a rag on your head! And stay away from salad bowls.
I have a Soumy and a Scorpion EXO700. The Soumy is very light and meets BSI standards. If it doesn't feel good on your head you won't wear it.so try one on at your local dealer and order one from Extreme supply.
This can be a source of contention. While it is VERRRY tempting to try a helmet on at a store, and then order it online (99% of the time helmets are MUCH cheaper online), alot of people don't think you should do it. I took a crap shoot with mine and just ordered it online without trying it on (wouldn't recommend this though). I got lucky however, and it fits perfectly.
Personally, I would go to a store, try on some helmets, find the size I need and then buy some other stuff there $40 - $50 (stuff that you can't get a much better deal for online like oil, grunge brush). That way, the store is getting something and I don't have to pay their absurd sticker price for the helmet.
It also depends how friendly and helpful the staff are. If they are extremely nice and helpful, I would seriously consider buying the helmet from them. If they're downright rude, not helpful, etc, I would find the size, not buy anything and then order it online. Just my opinion though.
Also, Extreme Supply was a pleasure to deal with. I just ordered something from them last week. They were the only company that had it in stock. I called them at 12:30PM and received a tracking number for my shipment later that night. Very friendly, helpful service with good prices. I will buy from them again.