Largest Single Drive for a HR10-250

[OOOOPS!]

Whats the largest single drive I can use for a HR10-250 and still be able to expand to a second drive later? The new 500GB is tempting.
Thanks,
OOOOPS!

[Dirac]

Should work great for you. I'm using 2 x 400 GB drives. Weaknees has tested a 2 x 500 GB system. The total theoretical limit is somewhat larger than 1 TB.

[OOOOPS!]

Thanks,
I just ordered one.
OOOOPS!