Viewing ETF's via Charts.

Hi Folks,
I'm hoping someone can help me with this one.
I'm currently looking into buying a commodity based ETF which is quoted on the London Stock exchange and is for sale via EFT Securities.com.
I haven't decided exactly which one I'm going to buy and so wanted to do a bit of research on them.

However I can't seem to find a site that lets me view it's performance bar chart (not sure if that's the right term) e.g. to see it's closing price for each week over a period of time in the past e.g. 6 - 9mths.
I've tried bigchart.com & barchart.com, but when I put in the code - AIGA e.g. the code for one of the ETF's it can not be found.

Does anyone know of a free chatting website that lets you search on all stocks, EFT's etc that are quoted on the London Stock Exchange??

Thanks very much, as I feel I'm just going around in cycles at the moment.

For shares - digitallook.com is excellent. commodities Kitco.com has excellent facilities for tracking metal commodities. For etfs try etftrends.com

Yahoo finance is pretty good as well. http://finance.yahoo.com/q?s=IFFF.L

Thanks very much for your replies.
I'll try those sites over the weekend.

In theory the commodity based ETFs track the underlying commodity. The best source that I have found for commodity charts over time is tradingcharts:

http://futures.tradingcharts.com/menu.html

Pick the closest expiring month.