Omega wrote:wat kind of products would u recommend apart from almax? only reason im clingin on to that name is i saw  a video hat showed they were really hard to cut through...
Not just 'really hard' - impossible!
For the simple reason that the chain is so thick that even the biggest hand-held bolt croppers cannot cut through the links!
Do a search for Zanx on 
http://www.visordown.com for his vids etc.
For out and about you can't really beat a good disclock.
I'd personally recommend Squire on experience - but bear in mind the scrotes STILL carried a 200+kg VFR750 up an inclined gravel driveway and 30 yards down the road before trying (and failing) to kick it off.
Bolt croppers can't get a disclock off - so ideally use a chain AND a disclock.
If they need two different tools they're less likely to bother.  
 
As far as what chain... any.  Try to get a chain that is 'surface hardened'.  This means the outside of the metal is really hard to crop - but the inside is still soft metal.  If the whole thing is hardened it's brittle so that both sides of the link will shatter together.  If it's just surface hardened then you'll have to crop both sides of the link to break the chain.  In reality this may buy you 30 seconds of time...