I've been taking piano lessons for several months and I'm currently playing on a yamaha P80. I feel like the heavy action on my keyboard is holding back my progress.

My piano teacher has a 100yr old grand piano and the keys are light as a feather and I can play comfortably anywhere on the keys, whereas my P80 is so heavy I usually stay on the bottom 1/3 of the keys, which obviously isn't good for my technique.

What's a good digital piano that has a real light action? I really don't care about sound quality at this point in my career and I don't need any special features.

I recommend Yamaha's NP-30 for it's graded soft touch, it's great sounds, it's durability, and last, but certainly not least...it's not very much money.

I just bought one yesterday, and all you need is a pedal, and the P-80's should work fine.

It's that light (12 lbs), you could take it to your lesson.

Snazzy

I think your P80 has the GHE action. Yamaha's GHS is lighter. GHS would be found on the P85 (current price about $600) Roland's FP4 uses their "PHA II Alpha" keys that are light.

But any unweighted keyboard will be even lighter but there are not a lot of there with 88 keys. The Yamaha YPG535 comes to mind as one.

If you want 76 keys then the Yamaha NP30 would be worth looking at.

Your P80 is worth enough on the used market you could sell it and buy any of these as an even trade or even pocket some cash on the deal.

Practicing on a keyboard with a different touch is an advantage for you, and is not holding you back at all. You don't need another keyboard. Save your money for a real piano later. The differences between electronic keyboards are all very minor compared to the differences between keyboards and real pianos.

If you feel held back, then double your practice time.

The P-85 is a great choice if you want a lighter action.

One general problem with digitals is that the key pivot is closer to the visible end of the keys, so there is a bigger difference between playing at the end of the keys and between them. On a grand, the lever is much longer, so it's pretty unimportant where you strike the keys.