officially Hxx series boards can't overclock, but apparently they can allow changes to the multiplier due to old microcode... read this
anyway, i'd say you can save $30 off the mboard by getting a H8x/Z8x/B8x chipset instead (B allows overclocking but no onboard graphics, Z allows both) since you don't need the newer features. make sure to research it to make sure it can overclock the pentium though
also i recommend buying older processors used, you can probably save another $20 there