The 2.6% undergrad edu loans will be balanced out by the current Subsidized Stafford Loans I'm taking out for grad school, which are now set at a fixed 6.8%.
I would consolidate again when i graduate but I don't want to screw with the low rate on the ~$16k of undergrad. I'll probably have about an additional $16-20k in grad loans when this is over.
Last year I was in repayment for about 7 months and I think I was able to deduct about ~225 on my tax return from interest paid.