More people than I realize were unfamiliar with digital IR, I guess.
Yes you can buy a digital camera and have it modified, or get one than has a high IR sensitivity out of the box (remember the M8, or R-D1?) The photos websites must have 10s of thousands of digital IR shots (B&W and Color 🙁) But as pointed out earlier, you don't get the same ethereal look you could get from HIE. It should be obvious from the digital posts here that digital is no replacement for HIE - and I have never seen any convincing post processing that came close.
But, that said, HIE is gone. Settling for Efke, or Rollei, or digital is required for IR....