mlsoft... re: PPT, I'm certainly aware of the powers of the PPT, but there are definitely more "powers" around other than them... And once the buying momentum starts and gets some legs going then the fact is: rising prices causes more buying. There's also many market-timer newsletter writers who have all gone on buy signals, and I'm referring to the top ten market timers.
perhaps a quote is due here...
"When you have got an elephant by the hind legs and he is trying to run away, it's best to let him run." -- Abraham Lincoln
That said, I have shorted DELL and TYC here, counting on Naz 1400 and SPX 950 to mark a local top.