Need a couple of 20' (or around there) HDMI cables and refuse to pay Best Buy's ripoff prices.  Any suggestions for a good cheap local place in SF before I drive down to Fry's?

mycablemart.com

Check Central Computer.  They are the best computer store in SF (which is quite an understatement and quite sad considering its proximity to Silicon Valley).  I suspect their prices will be super high though.  Also, if you drive to Fry's take into consideration the cost of gas.

It's not an understatement, it's a statement that's not saying much.  It is the best computer store in SF, but it still sucks.

i have a friend that can get HDMI cable for $1 a foot.

Yeah, I'm with you Mike, but I'm i the middle of mounting my TV and just found out one of the ends on one of the cables is bad.  *grumble*

if not ebay, craigslist may be a quicker option.
I've been surprised at the shit I can find on that site.  You know, besides hookers.

Central Computer

Radio Shack

you could have bought them at newegg for 2 bucks during black friday. maybe see how much they are on newegg now.

I just use newegg when I don't want to drive to fry's

+1 more for Central Computer.  At least they're close, and not as expensive as best buy, etc.

If you have the time to mail order, check out monoprice.

you on the internet RIGHT NOW.  go here.

I'm gonna echo Stephan's sentiments: monoprice.com.

There are a couple of places on Amazon that offer 6' ones for $0.01 but the shipping is like $5. so go in with some folks to maximize an already great value..

My neighbor ordered from them last year and got an extra for me... I am gonna order 2 more soon, but maybe not in time for your level of urgency.

amazon.com/HDMI-meter-fo…

Oh yeah and this is what you were asking about as far as length. 25'

amazon.com/25ft-HDMI-Cab…

and it works great too. I was shocked and thrilled  so I thought I'd shill.

I usually get all my cables from monoprice.com.   They have the best prices that I have seen.

ebay if you can wait, Central Computer if you can't

Central Computers... they have HDMI cables for very cheap.