Why not replace the stylus with an OM10 or one of the upgrades available from Jico or LPgear?
I had a look at the Pro-jects last weekend and heard the new one and the Debut III. They're certainly not bad, but I'd be a bit cautious about throwing too much money at them. The dealer made the point by demoing the same cartridge, an AT95E, in the Debut then in the Xpression, and there was a world of difference. The Debut sounded OK, if a bit noisy, but it was like a veil had been lifted from the sound when he switched to the Xpression.