A friend of mine has just completed the schematics and built a mini-programmer for eeproms, at a total cost of under £5 (5 uk pounds). He has also put the software + diagrams + photos on his site (for free)for promming the eeprom.
http://www.tigger.uk.com
He is a real cool, and very intelligent dude, go see for yourself and build your own prommer (100% working) instead of paying sh*t loads of money to companies.
Good Luck.
If u like his progger, say so.
Thankx
K Of K