20mm mounting lights/lasers - where and what?!

[Rumpel Felt]

OK, after Die Hard 4, I fell in love with the look of the UMP set up they had going on. So I bought one.

But I don't know the first thing about tactical lights.

I know they have some crazy ass Surefire XXXX that would cost around $X00 dollars....but I'm not looking to spend on a light what I spent on the gun.

So, where's a good place with a large selection of at least some what quality lights ....and mounts. I'm looking to mount a light or laser to the barrel or magazine tube of my SPAS 12 too.

Any info on lights and specifically green lasers and where to buy them and view a good selection would be appriechiated!

[surebet]

http://stores.ebay.com/eHobby-Asia-A...QQftidZ2QQtZkm
Lights

http://stores.ebay.com/eHobby-Asia-A...QQftidZ2QQtZkm
Lasers

My personnal picks are these:
G&P R500
Action green laser

[DarkAngel]

+1 for the G&P R500 RAS
Its a phenominal light, 500 lumens, rechargable, ras mount, etc.
Only downside is the size and weight. Its not ment for smaller or lighter guns, only M4 or larger.