I recommend Lightwave for its modelling tools. The fine mesh control you get is excellent. The biggest drawback to Lightwave is the price ($2300 last I checked). As Aldo said:
Blender is nice and easy...I'm using it ahead of 3d Max 3 (which I've yet to learn) at the mo.
Blender has the added advantage of being A) free and B) available for almost every modern OS out there.
Always watch for redundant faces. Sometimes you'll end up with faces squirreled away inside a mesh that are not visible from outside, from any angle. Be careful with booleans. They're like the Dark Side of the Force: they're fast, easy, and powerful, but once down that path you step, forever will it dominate your destiny. That power comes at an ugly price in the form of messed up meshes and bizarre results. I recommend avoiding booleans all together. The last thing you should remember is that the eye can be decieved. Sometimes a good texture is better than a good bit of geometry.
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--Mik
http://www.404error.com ruhkferret on ICQ/AIM
[This message has been edited by mikhael (edited 12-27-2001).]