Cooling 2 7800GTX Video Cards

[SilverPages]

Right now on my computer I have 2 video cards:
1) BFG GeForce 7800GTX 512MB
2) XFX GeForce 7800GTX 512MB

The XFX card I have for a few months ever since I won in a competition but the BFG card I only got from my friend for 100$. The old card has a Arctic Cooling Accelero X1 cooler but the other card still has it's stock cooler and I want to buy a new cooler for it and maybe for the old card because the Accelero isn't that good of a cooler; it's a whole lot quiter then the stock cooler but not much cooler.

Rest of my rig:
Intel C2D E6400 + Tuniq 120mm Tower
Asus P5W64WS Pro 975X
TankGuys 2Gb (2 x 1Gb) 667 Mhz CL3
Stacker 830
Silverstone 850W

Budget is around 150$ for both cards.

Ideas so far:
1) Adding accelero
2) Buying 2 Zalman VF900
3) Thermaltake Tidewater SLI (http://www.overclockercafe.com/Reviews/cooling/Tt_Tidewater_Dual/index.html)

I do want to OC the cards as much as I can so I need the cooling to be the best as it comes in the budget.

Thanks :)

[Nanometer]

I would say the VF-900. Personally I would go for 2 NV silencers, just because I loved them and they were insanely quiet and really strong.

[Nazu]

Well you could just get another Accelero and that would be the cheapest option, but if you want the maxium cooling performance then VF900cu's maybe the best option.

[SilverPages]

What about the Tt Tidewater?

I forgot to add that I have 2 Seagate 320GB in RAID 0.

[Nazu]

What about the Tt Tidewater?

I forgot to add that I have 2 Seagate 320GB in RAID 0.
Tidewater sucks. If you wan't watercooling get the whole thing, otherwise stick to aircooling on gpu.

[SilverPages]

What about the this (http://www.newegg.com/Product/Product.asp?Item=N82E16835109134)?

[Nazu]

What about the this (http://www.newegg.com/Product/Product.asp?Item=N82E16835109134)?
HR-03 is probably the best gpu aircooler at the moment, but it's bit expensive as you'd have to buy two of them for SLI. If you have money for it then I recommend it.