Question on which card to buy

Howdy; I am looking into buying a 1950pro card and I see from my dealer that he has several makes available. My question is, is there a real difference? The makes are:

Powercolor Radeon 1950 Pro 575MHZ 256MB 1.38GHZ GDDR3 AGP 2XDVI-I HDTV Out Accelero X2 Video Card

for $285;

Sapphire Radeon X1950 Pro 580MHZ 512MB 1.4GHZ 256BIT GDDR3 AGP 2XDVI-I TV Out Video Card

for $285

HIS Radeon X1950 Pro 575MHZ 512MB 1.38GHZ 256BIT GDDR3 AGP 2XDVI-I TV Out Video Card

for $287; and a smaller ram card

HIS Radeon X1950 Pro 575MHZ 256MB 1.38GHZ 256BIT GDDR3 AGP 2XDVI-I TV Out Video Card

for $217.

It appears from the photos that the Powercolor card has a much better cooler, appearing like the Arctic cooler. So is there a real difference between the PC, S, and HIS cards? Also, would the extra 256mb ram make a huge difference in these cards?

Thanks.

agreed

Definitely go for the cheapest...