cutting steel plate with circular saw?

Hi,

I haven't worked with metal much - but have done a little grinding and
cutting in my time.  I have some sheet metal that a neighbor left me.
I believe it is 1/8", but some of it may be 1/4".  I want to cut long
pieces, say about 6 or 7 feet.

I've read on here about metal cutting blades with circular saws and
table saws, but it was unclear to me if anyone was making such long
cuts.  Will I be able to cut through that much steel with a circular
saw and a metal cutting blade?  Or should I be looking for a bigger,
more powerful tool?

I will probably need to make about 8 of these cuts, so total would be
approximately 50+ feet of cutting.

Thanks for any info,

Ben