You might want to take a look for Academy's 1/72 AH-64 Apache.
I've got it on the go right now and its my first helicopter in quite some time, its got decent fit and good parts breakdown, the instructions are crystal clear and the price is good (I paid $12.00 Canadian for mine)
The only drawbacks I can see are that if you aren't intrested in the Israeli variant which is the only one on the decal sheet, then you'll have to find some aftermarket decals. Secondly, it comes with the above rotor radome seen on the "longbow" version, but the avionics sponsons in the kit are molder symetrical as opposed to the asymetrical arangement on the actual "longbow" Apache. Fortunately there is also the standard mast antenna so you can make earlier versions accurately.
Whatever you do, steer well clear of Airfix's 1/72 Naval Lynx, its a reissue of an older kit with an update sprue for current versions. The update parts dont match up to the old parts well at all and you'll just be disapointed totally by it.