wedding wine recommendations

[Ktrun]

I am getting married in November in tropical South Texas & need some recommendations for a white & red wine that would please many palates. The dinner is a mixed grill of Sirloin w/ Cabernet sauce & grilled shrimp. My fiance's guests like sweet wines, but my German family & I prefer dry wines with a bite to them. Is there anything that might please both groups. For reds, I like Merlot, but really have no other red wine experience. We would like to stay under about $10/bottle. Thank You.