I second the choice of give-me-ltc.com for a pool. They do charge a 2% pool fee, but I've had nothing but good luck with them being (and paying) up. Basically, as soon as you accumulate 1 LTC, they deposit it to your address (sometimes within 2 hours of hitting 1 LTC, but they are reliable).
I just got my first payout on give-me-ltc.com. Is it common to not get the full 1 LTC? I only got 0.99246693 LTC.