i have 32 in the front and 30 in the rear, although since putting some falkens on the rear im sure it feels a little "soft", probably just me though. rear tyres seemed to wear evenly with that, cant comment on the front as the tracking being a mile out killed the 2 of them :O . no idea were i got the 32/30 thing from though, could be wrong but its ok for me so far.
35 just seems to be what all garages put in them, when i had the last 4 tyres fitted they put in 35psi and with the last 2 they were done to 35 aswell, both at different garages, in reality aslong as its within the right kind of range you wont notice a difference unless really pushing it, most people never bother to even check them.