I came across the enclosures while googling for external SATA drives and mean to research them further.(…) Altho the couple of sites I clicked to only had enclosures for laptop-sized drives. [/quote]But they exist
I didn’t realize ODD manufacturers and firewire ext ODDs were becoming extinct - I guess because of Blue Ray.
No. The reason is simply profit.
An IDE to USB+Firewire converter is more expensive than an IDE to USB (only). Additionally, since Apple computers also come with USB 2.0 Hi Speed, there was no reason for the drive manufacturers to continue with the more expensive hardware.
But here, the same applies as with eSata: enclosures are still available.
And there are even enclosures with USB+eSata+Firewire, like this one (available in the US): http://www.directron.com/me535limited.html
You may also check here: