is there an adaptor so I could use a mac monitor on my PC? I've seen adapters the other way around, but was just wondering
Yes, if the Mac monitor is a multiple frequency (aka resolution) monitor.
(Fixed frequency monitors might work if you have the right video card and tell mame and windows to always run at that frequency.)
Next, you have to look and see if the monitor is seperated sync, composite sync, or sync on green. Seperated sync is the easiest one, and the most common monitor; the adapters cost $5-$20 ($10 is good price). Composite sync and sync on green adapter are more expensive since the sync signal needs to be combined by the adapter from the VGA's seperated sync signals. Prices ran from $20 to $60.
(Prices may be old; I used to work for a company that sold these adapter a couple years ago, but it's now out of business.)
Finally, you need to know the monitor's cable pin plug type. I'm assuming "DB-15"; the most common apple type, "D" shaped plug with two rows of pins, one of 7, the other with 8. (VGA plug is sometimes called "HD-15" or "HDB-15")
Hmm, this
adapter looks like the exact thing we sold; we charged $10 two years ago, so $13 not too bad. You might find something cheaper. *shrug*
Of course, if you have a different monitor (apple put out a bunch of different syncs, plugs, and frequencies), you'll need something else.

That site, above, has a lot of adapters to choose from. If you aren't sure, ask (but I'll need some more info on your monitor).
