making own ROM's

[kirk_m]

AM27C400 UV EPROM, from what I recall, is what you need.  I just bought 10 of them on eBay 2 weeks ago.

[kirk_m]

You can use a TL866-II programmer for them with an adapter for those eproms sold by GGLabs.com.  The TL866 doesn't support them natively, so the adapter is needed.  I use a SuperPro 610p, which doesn't require an adapter,  but, that's a $500 programmer.

[kirk_m]

You can also buy one of those FLASHrom adapters from GGLabs on ebay.   He will program them for you with whatever Kickstart you send him to put on it.