Wait just to make sure I got it, using the circular needles I just slide the stitches that I just knitted to the other needle, never switching from left to right?
Yep, you just knit around and around holding the same needles, never switching...
So you have to make some modifications to your stitches. If you want to knit in stockinette, you just keep on knitting; if you want a garter stitch, then you knit one round and purl the next.
Slightly off topic, but is it ok to knit something with straight needles that the pattern calls out round on?
It seems logical that you could, just making two pieces with the appropriate increases and decreases.
I don't want to knit for two weeks only to find that there's a fatal flaw (that doesn't have to do with my gauge) that I didn't realize.
I'm a college student and can't really afford to buy circular needles when I have the same size in straight.
I'd think it would work, just remember that if you were knitting in the round, you would never turn the piece of work. So if the it calls for a specific stitch pattern, you might have to compensate by purling where it wants you to knit, etc.
Heh I completely understand about being a college student... I got all my circulars from my grandmother when her hands started to act up and not work properly anymore...