In my opinion, the PSR E433 is much better. I tried both the E433 and the NP V 80 (the big brother of the 60) in a music shop and ended buying the E433. The E433 is only one year new, the NP V 60 and 80 are already several years old. To my ears, the accompaniments and voices sound better on the E433, it is also lighter to carry around. The E433 has more sounds and styles than the NP V 60 and 80.
If you really need 76 keys, buy the NP V80. It is better than it's little brother 60 and has more styles, more voices, more features.
The musical genre you want to play is also a criterium of choice. If you are into modern dance music and DJing, go for the E433, it has very nice live playing features like filter controlling etc. If you are in jazz or cocktail piano and easy listening, go for the NP V 80, it has nice piano styles, as well as more acoustic and electric piano voices than both the NP V60 and the E433. It also has a very nice Tenor Sax and Clarinet voice, which might interest you if you want to play some jazz.
If you are a complete beginner and don't know what to choose, go together with a more experienced keyboard player to a music shop near you and try both keyboards for as long as you can or as the shop dealer will allow. If you and your friend agree on which keyboard to buy, this will be a sign that your choice is correct.
Hope this helps,
Vinciane.
P.S.: I have my PSR E433 since the month of May and I am very happy with it, it is a great first electronic keyboard for all players I think.