With only a couple of years under my belt in the "laserworld", I am just a novice compaired to the to some of the contributor to this thread. I choose to drop in, because I have been going the same path as you now are about to follow.
I beleive i own most of the same parts that you have gotten from ebay, and, for shure, this will be more than a starterkit.
If your green module is the same as I have. (looks the same), it was sold as an analog module, but I received a TTL that reqiure 0,3V into the modulation to start lasing, and lases at full power at 0,4 volts. But i have managed to use it anyway.
The red module will probably have a wider beam, than your green(3 MM) and blue (4mm) The red will become much wider the loger distance you throw the beam. The blue will also become wider, but not so much, and the green will be even more narrow than the others. As long as you use them for beams indoors, you will not notice this so much, but for graphics, it`s more or less useless.
The galvos (Scanners) looks to be the same as i have got from ebay, and for the price, they are actually quite nice. The showcard that comes with it, might work, but mine did not work for sound detection or DMX. I did not bother, as i don`t use sound or DMX.
As for software and DAC, the best reccomandations have already been mentioned. Pangolin software are stable, well known, easy to learn, and does wonder with a lowend projector.
But you should also consider Spaghetti. I have a couple of licenses, and are very happy with the result. I use Spaghetti with a Riya Light DAC and a IShow DAC. (Yes, both at the same time, and it works great).
IShow might be worth the money, because you get a DAC and a huge library of ILDA graphics with it. The software itself is crap and should not be installed. There are one MAJOR drawback with the IShow DAK, and that is the support for ONLY 32 BIT Windows OS. Win XP works fine, but Win7 can be quite tricky to accept the drivers for the DAK.
Spaghetti is easy to learn, stable, and a new version are under construction. (Don`t wait for the new 3.0 as no-one know when it will be released.)
For dichros, i purchased my first from someone at ebay, and they did work out fine. 3D holders will be highly apreciated as the alignment will be so much easyer for you. I made my first dichro holders from an aluminim L profile, and ended up using most of all known dirty word in my rich norwegian vocabulary.
For some final words, think safety. One small glich with the laser, and you will end up with permanent eyedamage. TTL modules are full power, and i highly reccomend using safetyglasses. I unfortunantly have retinascars, although using safetyglasses. One microscond lifting the glasses to check the aligment, and one knee knoking into the table when i moved was enough. STAY SAFE.
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More projects than time available.
More projects started than finished.
More money spent than earned.
More failure than success.
Just got to love lasers!