I'm a server and a back-up food & beverage controller; let me offer a few sugestions.
Montevina Wines Zinfandel from Amador County 2004
Link
Check out the links for more details, but in short - cheap and sweet. Notes of ... well, hell. It's white zin.
We call it Kool Aid at work. Should be less than $15 for a bottle.
Secondly, a Riesling is great for summer when it's hot outside. I like this more than the first recomendation, but its not as sweet and fruit forward.
Saint M 2004 Riesling This should be cheap also - less than $15.
Wine.com link
If you would like to try something different and not very sweet, try
Conundrum. It's made by Caymus who consitantly put out great wine. A full bodied, impressive white. Complex with alyers of citrus, melon, subtle hints of oak. It's more "expensive." It's around $20.
LLL2, presentation is everything. You can thrifty and buy jug wine and put it a
carafe or
decanter to impress your lady. A friend of mine does this and works very well.
Don't be intimidated by wine or wine snobs. It's a great world to explore. Sip and reflect, "Ahh, a subtle hint of grape!"