looking for bulk "new" domain register around $5 for multiple years, NOT 1st year then 2nd and 3rd year it is $11 or more. actually less than $5 these are .com and .nets and prefer to pay with paypal
What you are looking is actually some registrar who wants to sell domain at a loss to get more customer. which IMHo is not a good business practise and soon the registrar would not be able to sustain their business and the after sales service would suck. You dont want to be caught in such situations... You can check www.resellerclub.com, they are running a promo on all their domain this month.... Ani
I can help you to set up "pro reseller" for around $125 instead of $199, and your cost will be around $7. Plus few registrations from new customers will bring your own redistration price down. Less than that is short solution and looking for a trouble.
MyDomain.com prices come down to just over $5 on bulk purchases, you can use coupon code "bargaincat.com" to get 15% off. Also a few registers might give you a special discount if you contact them and ask for a good deal on bulk.