Alex,
Switch to IB, the T3 thing is just for cash accounts. With $4k it would be better to pay $1 minnimum than the 9.95 Datek charges. You'll also get faster executions.
You will be able to daytrade once on Monday, Tuesday, Wednesday, than you'll have to wait two days. You can also trade the gaps.
This is how often you can trade under the new regulations:
On Monday, you can sell the position you entered on Friday, then you can buy and sell a single stock once. Before the end of day you can buy another stock, sell on Tueasday, buy and sell the same stock, at the end of day buy stock, sell on Wednesday, buy and sell the same stock once, then buy stock at the end of day and sell on Thursday, buy on Thursday and sell on Friday, buy on Friday and sell on Monday. That's a total of 8 trades a week (god, does this suck). All of them can be done at 2:1 margin.
That's 8 trades, three of which are intraday, and for a single stock. You should use the full 2:1 margin for theese or rather, as close to it as possible without generating a margin call. Intraday trades tend to be safer, so as long as you pick your stocks carefully you should be able to get close to 2:1.
The other 5 trades would be overnight, these are more risky, but becouse there is no hard limit for the number of round trips you can do overnight, and you are only limited by the number of nights, using IB you can buy 4 or 5 (or more, figure this out) different issues at the end of each day.) This will limit risk, and will again enable you to get closer to the 2:1 margin.
As far as stops are concerned, it makes no sense to adjust them based on what the stop was when you did your last trade. Your stops should be adjusted to give you the best possilbe profit/loss ratio. You should figure out what the best stop would be by looking at the charts, not at how your account balance has changed.
Just my opinion.
voodoo