Spinach-Artichoke Dip with Bacon

1/2 cup low fat sour cream

1/4 cup (1 ounce) grated Parmesan cheese , divided

3 gloves garlic , crushed

1/4 tsp black pepper

5 center cut bacon slices, cooked and crumbled

1 (14 ounce) can artichoke hearts, drained and chopped

1 (8 ounce) block

1/3 less fat cream cheese, softened

1 (8 ounce) block fat-free cream cheese, softened

1 (10 ounce) package frozen chopped spinach , thawed, drained and squeezed dry

1 package baked tortilla chips or baguette chips