If you're looking for cheap Cubs tickets which aren't as far away as it gets, the Upper Deck Infield offers some good options as they keep you between first and third base on the upper seating tier. The views are higher than on the lower level, but provide a good perspective to the entire field if you can avoid the upper deck support beams.
A walkway separates the lower 400 level aisles (also known as the Upper Deck Box) from the higher 500 level aisles (known as Upper Deck Reserved). Upper Deck Box seats have the safer and better view, while the Upper Deck Reserved seats put you further from the action and potentially could have you behind one of the support beams located at the first row.
Upper Deck Box aisles 419-422 are located directly beneath the press box, providing one of the best all around views of the field, center field scoreboard, and the Wrigleyville neighborhood for fans on a budget.