>I bought X-Graphics and I'm glad I did. It really improves>the environment in FSX. Beautiful clouds, very realistic>looking environment. Nice scortched runways instead of the>squeaky clean FSX default textures. And the sounds of flying>through a Thunderstorm are very cool. >http://www.hifisim.com/xgraphics.html>>The FS Genesis mesh really adds allot to the sim imo. Flying>over mountain ridges or the Grand Canyon is very impressive.>There are elevation issues with some airports, but I still>prefer the high res mesh. >http://www.fsgenesis.com/Merchant2/merchan...&AFFIL=W9k5h784>>I also purchased Ultimate Terrain X and, for me at least, it's>a must have. Every road, rail bed, river, and stream in the>u.s.. Golf courses, cemetaries, etc. >http://www.flight1.com/products.asp?product=utxusa>>I guess those are my 3 fav paywares.>>Oh, and I bought FSDiscover yesterday. I really think it adds>alot to flying in this sim because it points out population>centers, geographic landmarks, points of interest, etc. Very>cool. I just toggle it on every once in a while and see>what's in my surroundings.>>http://www.flight1.com/products.asp?product=fsdisc>>How big a hit on the frame rate does Ultimate Terrain X have?Do the cars and ships stay on the roads and rivers?How big a hit on the frame rate does FSDiscover have?How big a hit on the frame rate does X-Graphics have?

FsDiscover didn't seem to have any noticeable frame rate hit what so ever. X-Graphics didn't seem to have any frame rate hit with the default theme installed. I have installed the high res 512x512 clouds and bumped up the airport ground clutter. I also installed the runway and taxiway bumpmaps. I never noticed a framerate hit, but if you crank up the airport clutter too high I imagine it would impact frames.Ultimate terrain X does seem to have a fps impact, but it depends on what features you use and it's highly configurable. The configuration utility shows a basic representation of how much each setting will effect performance. Yes, the cars stay on the roads, the boats stay on the water. Car traffic is problably the highest costing feature in UTX. I'm happy as long as I see a few cars here and there, so I don't run it too high.My system is a core2duo @ 3.2ghz, 8800gtx, 4gb ddr 2, xfi, 680i. I'm able to run 1600x1200x32, 16xAF and 4x AA set in the nvidia cp.When it comes to sims, I love eye candy and I'm happy as long as it runs smooth. Naturaly I'd love 60fps, but I'm happy with 20+ as long as it's smooth.