I would try less expensive ways to minimize large pores. If you don't already, exfoliate. I love the Scotch tape method - just stick a piece on your face and gently peel off. Do this every 4-5 days, then reduce it to once a week.
Try aspirin mask (google it). Aspirin works as a salicylic acid (beta hydroxy acid) and cleanses your pores deep down, making your pores appear smaller.
If you're not opposed to it, try Paula's Choice Beta Hydroxy exfoliant. I use the 2% gel just once a day, and my pores appear so much smaller.http://shop.paulaschoice.com/product/223/8
Make sure to read the FAQ on which strength and formula you should try first. eBay has them with free shipping.