I am considering a large SATA II drive. I was planning on installing a PCI SATA controller as my MB is ide.

Should I just do a SATA to IDE bridge($9)? a SATA 150 PCI card($15) or a SATA 300 PCI card $40?

I don't want a new motherboard just yet, but want to invest in a 500gb SATA over IDE so I could move it to new PC one day possibly.