I've just found my old Tyranid army from back when I was a kid (3rd or 4th edition one's) but i'm wondering if it's worth buying the new codex and adding to them?
Here is the list:
1x converted Hive Tyrant (2 sything talons and barbed strangler).
15x Genestealers (includes the 3 that came with Space Crusade).
12x Termagants (Fleshborers)
3 Tyranid Warriors (all with Death Spitters and rending claws )
3 Ripper Swarm bases (5 on each)
...If I was to continue with this, i'd probably add a Zoanthrope and 5 more Termagants?
You have about a thousand points there with normal builds.. I'd suggest an Exocrine, Hive Crone, and Trygon to add to these.