In our most recent Z77 motherboard round-up we concluded that, if you're looking for an affordable ATX board, your best options are the Gigabyte GA-Z77-D3H, MSI Z77A-G43 and MSI Z77A-G45. The ASUS P8Z77-V LX now joins that club, and here you can see their specifications side-by-side. The Gigabyte and MSIs G45 are in the same price range as the ASUS board, and the MSI G45 is the cheapest at £78.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips