Cheap raid-6 card?

[Mercutio]

I've been a previous owner of the dell perc 5/i (still have it in fact). Was looking at the HP P410 but there's... some sort of license upgrade or similar needed for raid-6 if I'm reading it right.

Can any recommend an "old server" hardware raid 6 card in a similar vein. I'm after the bargain bucket £80 for card, battery, cache etc end of things. Just after some models to hunt for

 

[nox_uk]

Areca is a good brand most people forget to search for, might find some deals on the older cards.