I have Minivmac, Basilisk and Sheepsaver on my 2006 intel imac.

Of course its not "equivalent" to real hardware, but it does the job.

A port of Pac The Man, Apeiron, Bubble Trouble, Jack Jazz Rabbit

Also have Doom, Quake I, II and III installed. Tenebrae rocks!

Here, it is not only equivalent, but way superior to the 233mhz iMac I used to play it on

However, I prefer the simplicity of Adobe PS 2.5.1 to the overbloat of Adobe CS4