I managed to score myself a huge unpainted Tyranid army ( this was a real score) but am unsure of where to find the most acceptable list possible including stats? Anyone have any ideas? Also, tactics would be helpful too.

again, thank you.

Well there are two places to look http://epic-uk.co.uk/wp/army-lists/for the Epic-UK version or http://www.tacticalwargames.net/taccmd/viewtopic.php?f=69&t=23686 for the NetEA compendium. Have a look at them both and see which you want to play with.

I've had a go with all the lists and found each has its plus points and drawbacks.