P2 Card

[r1ck]

I am shooting with an HPX-170.
I am editing with a Quad G5 running OS X 10.4.11 and FCP 6.0.4 and a G5 running OS X 10.4.2 and FCP 5.
I shoot on a 16 GB P2 R Series card in standard definition, either DVC or DVC50 mode depending on how soon I can dump the card off and what I have to shoot.
I am looking into getting a 2nd P2 card. I am looking for some suggestions:
Should I go with a used P2 R Series card or for about the same price should I go with a brand new P2 E Series card? Obviously I want more space, and it would be nice to go with a 32 GB card, but I have been using the 16 GB and I might have to stick with the 16 GB for price reasons. I will of course keep my 16 GB R Series that I already have, so even with a 16 GB, I will double my space.
Any thoughts? Also, I am assuming that the E Series will still run on my older systems? I don't have the money to upgrade to a whole new computer system with FCS3.
Thanks

 

[wgzn]

the e-series card will be fine. i would stick to matched sized cards if you only have two. if you get say a 32gig, when your 16 is full, your 32 will still be transferring and you'll be at a standstill.
with matched sized cards you can be nearly certain that one card will be done transferring before the other is full.

i have 3, 16 gig cards and the only time i ever even think about needing more is when im shooting long form. like music events or speeches. in which case i generally just rent a pair of 32s for $50 or so...