from a brief look I don't know if you are going to find a 1 x 1 correspondence that you find with $SPY and the SP500 index

However here is a list of the many many sector based ETFS, not just the top ten as it says in the URL description

Top 10 Sector (General) ETFs

then what you do is simply take a charting service like BigCharts.com and make a comparison

here is an example with the Pharmaceutical sector

Dow Jones U.S. Pharmaceuticals Index, DJUSPR Advanced Chart - (DJI) DJUSPR, Dow Jones U.S. Pharmaceuticals Index Stock Price - BigCharts.com

DRG and DJUSPR Are two different Pharmaceutical indices and the rest are EFT's....they do not overlay the index charts but most follow them pretty close and you can pick the one you want to follow.

this is how I would do your research....pick a sector...then comb through identifying ETF's that seem to follow that index

this page helps you find ETF's for a particular sector...I did not find one for Pharmaceuticals in that list

ETFdb Categories | [AUTOLINK]ETF[/AUTOLINK] Database

Hope this helps in your research

I don't think the subjectivity in compare charts visually is needed; just look at the tracking error (an explanation from Vanguard can be found here).

MyTraderAdvisor, I would look at the three (or more) most liquid ETFs for the assets you want to trade, and compare these on various metrics (such as tracking error, costs, bid/ask spread, type of replication, etc) to look for the ones best suited to your goals.