Semperfiguy, After the falls of the 19th it's pretty much inevitable that there would be a bounce (up) on the 20th - the following day, as indeed there was yesterday. Asian markets, along with European "futures" all point upwards again today, (European futures about 0.8% up at the moment), and its likely the US will follow suit. So I wouldn't be selling before today or tomorrow! ....Correction, .... that would have to be today, as tomorrow is Good Friday a holiday in the west
Assuming that you don't want to diversify into other sectors, why not sell half of each of your holdings over the next few days, bank that, and then review things re the remainder in another few weeks.
You also have to ask yourself where will you put the cash released from the equity markets. With bank interest rates as low as they are currently and likely to remain low for the rest of this year, stocks with strong dividends are both sought after and useful to hold in one's portfolio. I have a strong emphasis on such dividend paying stocks.

This might be a useful reference point for you:
http://finance.yahoo.com/