Hi Tonkan,
Might I suggest another Digital Piano that is very good especially for the money, more specifically, the Technics SX P50.
I bought it when it first came out sometime last year and granted, and I am very pleased with it. It sells for less than the P80 and in my opinion and a better feel and sound. If you have the opportunity to try it out, please do. It is rather basic in functionality, just a few sounds other than the piano sounds, but the piano sounds are the ones that stand out. Plus the unit looks very up to date with its silver finish and it is also the lightest piano out there. 37 or 38 pounds.
The high notes are very woody with great sympathetic string resonance simulation, and the low notes are bassy and with a nice rounded tone. The mids are very good too.
The P80 is still a good digital piano, but it is a little dated. There is the new P120 which I suspect has improved features and sound although I don't know how much more it would cost.
Check out Harmonycentral's User review of the SX P50 here:
http://www.harmony-central.com/Synth/Data/Technics/SX-P50-01.html You can see other reviews of digital pianos there too including the P80
Enjoy!