Planning a SCROG for my next grow - 10 Gallon pots big enough?

I will be taking on 6 plants this next grow, with a SCROG setup. Planning on getting some 10 gallon pots, but I want to make sure that is large enough as I wont be able to do much once it gets started.

Strains:

1 x Dinafem Cheese
1 x Dindafem White Widow
4 x Harlequin

The Harlequins get rather large and are my most important - meds.

My original idea was for 8, 4 per tank in hydro, but I already have them in soil, so going that route for now.

I veg for about 2 1/2 months before switching over to flower.

One last thing, anyone try those plastic bag pots? Was thinking of going that route: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120716898340

Those will be plenty big enough. Ive use the plastic bag pots but didnt like em unless doing sog. I like rootmaker pots or aeration pots like smart pots.