I would suggest Ebay
! That's where I get all my bridles. I have a bit of a bridle fetish... HDR makes some decent bridles. I don't like their cheapest ones as much but the one that's padded and fancy stitched is actually quite nice for the price. And very very soft. The only thing is that it's a whole lot redder then any other "oakbark" I've seen. The edges are quite red. But the reins are comfortable in my hands and it holds up well.
One of my favorite middle of the road bridles are Circuits (by Dover). I've found them on Ebay for about $100 (if you're patient). I got a brand new one on tack trader for $60! I actually have 2 and the quality difference is noticable. I heard the ones that come free with the Circuit saddles aren't as nice. (interestingly my $60 one was the nicer one). I forgot how to tell the difference... I think the name is on the crownpiece or something? I really liek this bridle though (both of them). I use it in hunter divisions at A shows and they're great.
Ovation actually makes a spectacular bridle for the price. I think they're a little over $100. Next to Circuits I think these are my favs.
I found a brand new Arc De Triomphe on Ebay for $150!! ZOMG. It's my jumper bridle but ZOMG. It is a pretty pretty piece of tack....
All that to say, look on ebay. I'd go with padded and fancy stitched (that's what's in style).