Check your local gun show if there's one before Christmas. I just saw a guy at last weeks show with several sets of Beretta factory wood grips with the trident logo for $35. I thought $35 was high, so I didn't get a set, but they were beautiful.
Another idea... go to www.beretta.com and look under "Special Parts" and then "Pistols." This shoud allow you to check out the grips. See what you like -- forgot about the code number because when you order the item it'll be different. Go to www.Berettausa.com and click on contact us for the Maryland branch and call their toll free number. You can order them direct from the company like I did for my wrap around grips. Good luck.
I'd also look at www.carboncreations.com
They may not have a pic on their website but in their catalog the grips look great on a Beretta. I was thinking or getting some myself. I use their grips on my 1911s.