Conversion bits for Plague Marines

[RGilbert26]

Evening all, i was wondering if anyone knows of any miniature companies that make conversion bits that can be used on Plague Marines.

Currently i plan on using the Bio Helmets and Backpacks from www.maxmini.eu (mainly due to a thread on their forums).

If any of you guys know of other companies and could link them here that would be great.

Thanks for any help.

EDIT: UK sites preferred.

[Black Hydra]

Maxmini also made some Plague Champion head swaps. They also have some mutation body parts. Puppetswar has plague warrior heads as well:

http://puppetswar.com/product.php?id_product=45

[RGilbert26]

Those heads aren't really what I'm after, something closer to the bio heads from maxmini.

[Black Hydra]

How about these?

http://puppetswar.com/product.php?id_product=25