I have my macbook connected to my 32" Samsung LER74BDX through a mini-dvi to vga and then a vga cable to the TV'S PC input. I must say this gives a really good picture.
It was also quite cheap £15 for the mini-dvi to vga (from apple) then a male to male vga cable for £19.99. In contrast to the dvi- HDMI cables you are probably looking at more than the vga option with the DVi - HDMI cables on apple store for £65 (i think).
If your TV has a PC input, which many of the new ones have i would recommend the VGA option and save your HDMI port.
It was also quite cheap £15 for the mini-dvi to vga (from apple) then a male to male vga cable for £19.99. In contrast to the dvi- HDMI cables you are probably looking at more than the vga option with the DVi - HDMI cables on apple store for £65 (i think).
If your TV has a PC input, which many of the new ones have i would recommend the VGA option and save your HDMI port.