EECH should be easy to find, I bought mine on EBAY for about 20 AUD inc postage. Depends on where you are located at:D
Graphic wise? Its an old game ofcourse, and the EECH mod is a true testament to dedication and perfection within the limits of the graphics engine and code. Everybody's point of view will be different, the graphics do the job pretty well. Terrain is pretty nice! The FM is a little iffy to me (even with the .ini tweaks) but thats just my opinion. Great Avionics in the RAH 66 and AH 64. The campaigns are brillant, it has support for Trackir- 6DOF in Commanche and Hokum birds and 3DOF for Apache and Havic.
You really should give it a go. It will atleast keep you occupied untill BlackShark is released:music_whistling: