some bottom heat and some bright indirect sunlight.... they should take a week...

Seems easy enough, no special requirements. Same as for all cactus seeds. Surface sow or barely cover, keep warm and humid until germination.

Thanks. But, from what I've read, not all cactus seeds germinate under the same conditions. Some need a cold spell, Some need to have the shell of the seed broken down or abraded some how. One method I've read (for some types of cactus seeds) is to put them on a cut grapefruit for 24-48 hours so the acid can eat away at the outer part of the shell, Some need to have the shells cracked or chipped off because it's too thick and could take forever to germinate. All of this is to simulate what some go through naturally before germinating... For example, passing through the short, digestive system of a bird and I'm guessing that's the reason for the Grapefruit.
I was just wondering if any of you have ever grown them from seeds and what you may have done... If you'd done nothing... I'll just be patient. So far I'm at 2 sprouts.
Again, thanks

None of those things are necessary for the vast majority of cactus species, certainly not for Echinocactus texensis. Speed of germination depends almost entirely on temperature. Up to a certain point, germination is faster in warmer conditions. Copiapoas and Astrophytums tend to come up in less than a week at 70F-80F, most of the commonly grown species will start germinating in 1-2 weeks, a few may straggle on for up to a month.

Opuntias tend to be the tough ones, they have big seeds often with thick coats. The coats either take forever to crack open which is frustrating, or they need some help such as you describe. A few other species like Pediocactus can also be difficult.

Thanks.... IT just took time... Most are sprouting now!

I've done nothing special for my seeds. The worst case ones were Pachypodium -- I soaked them for 24 hours before planting -- got more sprouts than usual. Still waiting for last years seed, Pachy Baroni to come. Planted about 2 weeks ago. The Pediocactus I have planted last year stil haven't come up.
I was told to wait as long as a year. Patience is the key.

Expect a minimum of 5 days, typically 21 before you worry.

Sagebrush