If you want to know why Senkat left pm c0ld, this forum has had enough drama as it is.
As for stonetek I wouldn't recommend buying any diodes for the time being, apperently senkat's distributer sent him a bad batch of diodes which can't handle the same currents the old diodes from the group buy from last year could. Just wait some time and I'm sure Senkat will get things straightened out.
Do you have a driver circuit already? If not, check the 'Experiments & Modifications' section for the now famous DDL driver circuit. You can easily make those youself and if you need the components you can PM me and I can try to help you obtain them.