I'm currently putting 8% of my income into my 401k (through Vanguard) but the funds that are available to us pretty much suck. We're limited to about 20 funds and I've got myself covered in terms of allocating my funds among large cap, bonds, mid-cap, and small. What I was thinking of doing is putting money into a Roth IRA and try to hit up a few more concentrated areas, say "Emerging Markets" and "Health Care." There are a few other areas I'm interested in but I don't want to spread too much.
Which areas, in terms of ETFs, should I consider researching? There is tech, BRIC, health care and energy. I was thinking of sticking with two and splitting my funds between two ETFs.