E-File.com offers its Deluxe Plus E-file for $24.99. Coupon code "DNEWS40" drops it to $14.99. That's $10 off and the best we could find for this package, which includes 1040A support and retirement income.
Also available is the Premium Plus E-file for $34.95 before the above coupon, $27.59 after. That's $18 off and another price low. This pack features support for all deductions and credits, itemized tax deductions, and both business and personal income. Deals end April 15.