Impulse maybe DRM friendly, but GoG it is not. It makes no sense to even claim that it is. GoG gives you an exe and you're good to go for as long as the OS can handle that file.

A "computer" game will not run without a "computer".
A computer game (at least since pong) will not run with some sort of operating system architecture.
A computer game will run without Impulse. 

See the difference?  See why someone would, I don't know, be a little bothered by that?

I've seen a lot of people rationalize how Impulse is not DRM, but I have yet to see someone tell me why I actually need it to run.  You can't have it both ways: you can't tell me Impulse does not restrict my game-play in any way, but then argue that it is necessary.

If you're using Impulse because of customer loyalty or you just want to contribute something to Stardock, I have no problem with that.  That's your choice.  But don't tell me it's DRM free, because it isn't.  They are Managing the Rights of Digital software using their own client.  Whether that happens constantly or one time doesn't change that fact.  I'm a 1s and 0s kind of person, I see things in shades of true or false.

It is their way of making sure that the people downloading the game are those that has paid (or they are at least logged into the account of someone who has). Why should they support downloading through a web browser when they already have the means of doing the same thing that is being used for programs that can gain from having a special downloader (programs the get updates)?

As a note, Impulse is far less of a hardship that the original copy protection the game had which checked for the disc and took forever to do so, and did not play well with even the most minimal of virtualization (running in compatiblity mode prevented it from running).

The non-Impulse versions are said to run well on Windows 7 64 bit, and the re-released versions seem to have been overhauled to improve compatibility with new versions of Windows (they have a directory for .Net binaries that did not exist before).

I would say yes.  I have windows 7 64 bit, just installed the impulse versions of all games, and launched each game.  All appear to be working quite nicely.  So, I'd say pretty much 99.9% chance you won't have any issue on win 7 32. 

I would also like to know what resolutions each game supports before buying. I am running 1920x1080 native right now... I have missed these games so much, lost all three when I moved the family from the city to the countryside.

Anyone had trouble paying with PayPal?  I've tried three times now, and it fails to process, telling me that my order was neither submitted, nor was I charged for it.  I am, of course, glad to hear that it caught whatever the error was, and that I was not accidentally charged.. but I still really want the games.

Didn't use Paypal on this one, just payed with Amex and it went through with no problems. I usually use Paypal to pay though and didn't run into problems back then. Maybe they had some server problems or something. Just make sure you don't order it many times and pay for it - many times.

Yup - you only get resolutions your system supports.

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Some mods (e.g. Warlock Rules) modify the execuables, and therefore may not work with the re-released versions. I hear that they at least cause the game to want you to insert the CD.