Future planning 120~ gallon tank

[chocological]

My fiancee doesn't know, but I'm thinking about getting a large size tank, probably near 120 g or so, after we move in March. I've never worked with a tank beyond 30g, so I'm asking for suggestions here on filtration and heating. I'm going with a community planted tank, probably. Anyway, I like to be prepared, so help me out with some suggestions!

[Cliff]

I would suggest a single 300 watt hydor in-line heater and a pair of Rena XP3 filters

Or, two 200 watt hydor inline heaters and two Rena XP3 filters.

If your going to have a heavy bio-load, I would replace one of the Renas with a FX5

[chocological]

The dual renas sound like a good idea. I also like the idea of the inline heating! Thanks for the suggestions!
You don't think a HOB is needed?

[Cliff]

If you have two canisters and set them up for some good water movement at the surface (to keep your water oxygenated), you will be fine

That is how I have my 90 FW tank set-up

[Crispy]

HOBs are pretty good for mechanical filtration (especially the ac110s) whereas I find most canisters don't have the flow needed for great mech. I would even consider running one rena xp3 canister (or fluval FX5 if budget allows) and one ac110 HOB.