http://rapidshare.de/files/30629284/arr.avi.html lol, took 6 portals to do that. I'll work on the script now, so I can add some "portal-ish cursor" or whatever, will report if I can do something.
http://rapidshare.de/files/30643871/wrenchv0.24b.zip Here is a small temporary feature, I'll make it so that it decreases its size when you walk away from the target, and change color according to portal number, and disable it when both of the portals are active, so it can look more "realistic". (Then instead of the debugcircle you could also use a texture or sumshin, never tried it yet. You can see this script as a "template" >_>)
Edit2:
http://rapidshare.de/files/30687484/wrenchv0.32b.zip Ok so the circle goes blue when you are going to place the first portal, red when you want to place the second, and disappears when both portals are open. It also changes size according to the distance and stuff, but the size is not as accurate. Rawr.
//All credits go to everyone who worked on this mod, I love the wrench.