Once you feel like getting "bulk" discs, try one of the on-line media outlets like Shop4Tech or Meritline. I like getting bulk packs in case I get a coaster, I don't feel so bad about wasting a disc.
I got good kprobe results with Prodisc (ProdiscS03) and Ritek G04 DVD-Rs. Checking Shop4tech, you can pick up the Prodisc for under $56/100 and the RitekG04 for $63/100 (with coupon code). No tax + Free shipping.
But, if you like quality, STAY AWAY FROM CHEAP CRAP! Anything less than $45/100 is prob crap (not to sound elitist, but the Sonic and Matrix are both less than that --with sonic about $30/100 with code--and the quality fluctuates greatly within one batch). PIs averaging around 500-700. With Prodisc, its around 20-30.
I like the prodisc's production quality (never, EVER, had discs that were perfectly smooth around the edge like these), but the Ritek's give me slightly better kprobe results (which are kinda meaningless anyway, as long as it plays without skipping).
But yeah, FS0F is prob the best right now for 411 (plus you could always flash it to an 811 later and go with HS0K). Also, you might want to speed hack the firmware for older media thats made well, get some 2X stuff to burn at 4X.
Lastly just remember, just because it burns ok and verifies the info, don't mean it will play in your DVD player without skipping.