I always itemize it. Some people may worry that the client will see you don't already own this equipment, and it will make you look less professional. But hopefully the client isn't hiring you based on the equipment you own, rather your knowledge and experience.
For example, I don't own a bobcat, so when I need one I rent. I always include this as a separate charge, and let the client know that this is a rental, so our scheduling of their job will be based on when the rental is available.
Be honest up front, it will go a long way.
2011 F350 XLT 4x4 SuperCab, 6.7L, 6' bed, 6000 miles w/ 8' HD Fisher plow
2007 Honda Element LX 97000 miles
2008 Bri-mar 10k dump trailer
2003 Haulmark 6x14 Enclosed trailer