Against AD TF?
Start Cloth Armor and 5 Pots. Play safely until level 6 and just farm at your turret---it's something Cho'Gath does really well.
The most important thing to remember about Cho'Gath is that, much like Singed, they are weak early laners until they get their Ultimates.
Once Cho'Gath gets 6 stacks pushing him out of lane becomes nearly impossible. He can just trade auto attacks with you and then go heal himself off minions.
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Realo won gold at the Sex Olympics with a BROKEN FRIGGIN NECK.-Voltch