Here is some general layman info about the release of SP1, clipped from Windows Secrets newsletter.
Clips begin -

In short, this service pack adds surprisingly little to Windows 7. You'll want to install it — eventually.

...for those of you who followed the conventional wisdom and are waiting for the first service pack before installing Microsoft's newest OS, you waited without good cause. Win 7 SP1 sports a little nip here and a roll-up tuck there — but there's not a single significant enhancement to Win7. And that's good news. It seems, for once, Microsoft turned out a major new product that was relatively problem-free, right from the start.

Service Pack 1's most significant improvements

Uh, there really aren't any. At least not for the average PC user. (SP1 does have a few nifty new features for Windows Server 2008 R2.)

To save you a bit of time and effort, here's a summary:
Higher-definition connections with Remote Desktop: blah blah
More Windows Live ID support: blah blah
An HDMI patch: blah blah
An XML Paper Specification fix: more blah blah

This is a case where "SP" stands for "slim pickings."

...this first service pack says much about Windows 7. It's surprisingly free of the growing pains that afflicted earlier versions of Windows. Unless you are completely attached to Windows XP, the wait to upgrade is over.

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Of course this is heavily edited (blah blahs included) but gets the gist across. What do we glean from this? Windows 7 is pretty good from the get go, SP1 is not needed if you want to still use NT6.5, there is no reason to stick with Vista or XP at this point as all is well in Windoze land.

Dan

Edit: here is the link to a free viewing of this info:
[COLOR=#000099]What you need to know about Windows 7 SP1[/COLOR]

My computer came with Vista on it and I have considered upgrading to Win7 But everytime I do, I remember the ordeal of upgrading Windows in the past and always decide to wait until this box dies and buy a new computer with Win already installed . Especially since the price for laptops has come down so much.

Unzip attached file. It contains NinjaTrader.Base.dll
Drop it into c:\Program Files\NinjaTrader 6.5\bin folder (click yes for overwrite prompt)

You should be able to run NinjaTrader 6.5 under Windows 7 SP1. I am not sure about 3rd party addons, but they should run fine as well.

Unzip attached file. It contains NinjaTrader.Base.dll
Drop it into c:\Program Files\NinjaTrader 6.5\bin folder (click yes for overwrite prompt)

You should be able to run NinjaTrader 6.5 under Windows 7 SP1. I am not sure about 3rd party addons, but they should run fine as well.

Unzip attached file. It contains NinjaTrader.Base.dll
Drop it into c:\Program Files\NinjaTrader 6.5\bin folder (click yes for overwrite prompt)

You should be able to run NinjaTrader 6.5 under Windows 7 SP1. I am not sure about 3rd party addons, but they should run fine as well.