oh great.. i ordered it.. i guess i can return it if it is not as good as i like? never tried projector here but i already have blackout curtains on all my windows to keep the hot sun out.

sigh.. now i guess ill order a screen or put it on the textured white wall behind my 39" lG computer monitor... SIGH! hehe
http://www.ebay.com/itm/119-Manual-...775?pt=LH_DefaultDomain_0&hash=item461db45727
maybe this will be ok? 1.1 gain? i see 1 gain.. i dont know crap about projectors tho.. Or screens for them for that matter.
Congrats! How will you be running it off, off a computer?
If you have blackout curtains already, then you're all set. If you remember that a projector is simply a flashlight, that's the key - projectors can't shoot black, so the black on your screen is only going to be as dark as the room is. Even with high-lumen projectors, if you watch it during the day, the black scenes with be gray due to ambient light in the room.
If you have a white wall, I would suggest starting out with that before buying a screen for a couple reasons. First, white walls tend to look great with projectors. You do get some hotspotting, but unless you have a super-glossy finish, it's not such a big deal that you can't enjoy a movie on it. Second, you limit your screen size with a fixed screen. Since this projector has a fixed lens, the screen size is based on how far back the projector is from the wall. So I'd suggest just trying out the projector on the white wall to begin with. I have an electric screen right now and wish I had just used the wall (but I painted the basement walls a dark cinema red, so I'd have to re-paint that wall to test it). I can't say that a dedicated cloth screen is so much better than a bare wall that you should run out & buy one.
If you do decide to keep the wall screen, there are some simple screen mixes that you can get mixed up at Home Depot to paint the wall with (some light gray stuff usually) to improve the image, and you can also sand the texture down in the projection area. What some people do is build a simple frame & glue/screw it onto the wall, then paint within the enclosed area, so it looks like you have a fancy screen (with minimal work). You can either paint the frame a flat black, or wrap it in some light-absorbing velvet or something from a fabric store. I've even seen this done really nicely with stuff like 2x4's slapped with some black paint - makes a nice, solid frame (a thicker frame absorbs the excess light really well).
What some people do is put a screen in front of their television. During the daytime, they use the TV for watching shows. At night, then pull down the screen & get a jumbo-tron (just use a simple HDMI splitter or switch). That's a pretty cool way to do it!