There is a straight knife carbide blade replacement for the DW735 from amazon.com [http://www.amazon.com/DeWalt-DW735-C...58338&sr=8-29] priced at $150 plus a few $$$ for shipping. This is a single sided blade. I think they are also available for the DW734. However to get the carbide blade you need a US address [see the posts on the Woodworking page] and be able to go get them. From Toronto that would cost an extra $6 for US handling, $4 border crossing and fuel $30 plus time [free]. So a total of $190. Assuming a carbide blade last 10x longer than HSS and I bought the replacement blades from Elite Tools at $50 per set then I could buy approx. 4 sets [no time committment involved] or put it another way I would get 8 edges so technically the carbide blade is marginally more economical.The blades are also available from Mississauga Hardware for about $69. Go to their website print the page then go to Lowes or Home Depot and show them and they will match the price plus give you and additional 10% or $7 off to bring the cost to $60. I have done this.
An additional note on the carbide blade; it is 3/32 inch thick [due to the carbide insert] as opposed to the HSS blades which are 1/16 inch thick. People have noted that when installed the bolts hit the wood. The manufacture recommends that the bolts be ground down so that they do not hit the wood surface during planing. I talked to my brother-in-law and he can drill a countersink in the blade to recess the bolt rather than grinding the head.
A note on planning technique; I am not sure how the people who complain about short blade life are planning. Are they taking off too much wood; are the rollers smooth and not grabbing the wood thus burning the blade edge; is the table waxed so the wood slides nicely; is the wood dirty [contains sand and thus damages the blade]??? I assume people are doing the right thing but you never know as some of these have happened to me and as a result the blade has worn prematurely.
I agree with the above post, it is an expensive proposition to go with a byrd in this machine. However, I am not here to tell you how you should spend your money. I am just one of those people who are thrifty bordering on cheap.
Thanks and have a good evening.