wine selection for a wedding

[Mrs.Lucas]

I have been asked to select a red and white wine for a wedding. The budget is 9 canadian dollars or under for a bottle. (that translates to about 6 to 7 USD). The menu is two types of pasta one with a cream sauce and one with a tomato sauce. A chicken dish in a cream sauce, steak in a peppercorn sauce, roasted potatoes and jullianed vegetables. There is chocolate cake for dessert.
Now I know what I like but I do not know what a commen group woutl enjoy. Also, this is not a discerning crowd, therefore a drier or more oakey wine may not be enjoyed. The wedding is in two weeks and therefore is a summer wedding.
Does anyone have some suggestions?
Thank-you