Cheap Sparklies?

[Lil Ryan]

I'm throwing a dinner/dance party for about 100 people, and I don't want to go broke buying wine. However, the hall I'm renting won't allow any red wines or punches [img]http://www.wines.com/ubb2/frown.gif[/img].

I'm thinking about getting some reasonable Chilean Chardonnay to go with the main course (Chicken), and maybe something lighter like Pinot Gris to go with the appetizers (Salmon and others). Since we're celebrating my parent's silver anniversary, I thought it may be appropriate to bring some sparking wines (I can't afford Champange). However, with a price target of less than $10 per bottle, my friends recommended against getting cheap sparkling wines -- they say it causes headaches.

Any thoughts or recommendations on my (unfortunately white) wine selection?

Thanks!