The ones I listed are essentially the same thing. And yes they are safe chemistry. BTW the "real" thing is just a wrapper around different brands that the AW company has deemed high quality. Its not a actual brand. Whether you want to pay for the label is up to you, but all the testing on the generic IMR batteries I listed shows it is very comparable to the cells AW list.
Heres a link to the test done by a member of a flashlight forum:
Review: Generic LiMn (IMR) batteries | BudgetLightForum.com
And post 11 shows that the cells can handle amps that are once again, very comparable to AW cells, and that they will work fine in the our application.
Reference: mitro's pile of battery graphs | BudgetLightForum.com