I have a 98 Accord EX (bone stock) and my check engine light turned on and i was told i need a new Catalytic Converterand a new O2 sensor... I really would like my check engline light off, would this cat get my light off? http://cgi.ebay.com/ebaymotors/OBX-High-Flow-Cat-Converter-98-02-Honda-Accord-4CYL-ALL_W0QQcmdZViewItemQQcategoryZ33629QQihZ007QQitem Z170150801371QQrdZ1QQsspagenameZWDVW (http://cgi.ebay.com/ebaymotors/OBX-High-Flow-Cat-Converter-98-02-Honda-Accord-4CYL-ALL_W0QQcmdZViewItemQQcategoryZ33629QQihZ007QQitem Z170150801371QQrdZ1QQsspagenameZWDVW)

If not any suggestions, i do not want to spend the money on an OEM PLEASE HELP!!!!!!!

That would not get your check engine light to go off. Your best bet would be to find an aftermarket replacement cat or a used cat at a junkyard.
Do a search on this site. I know several have been recommended before, but I cannot recall any brands.

What code(s) are you getting? I know you said bone stock, but just to make sure, you have an OEM cat right now, right?