1. Ivy Bridge does not use the LGA 2011 chipset, but LGA 1155.
2. LGA 2011 will probably be used for the IVB-E chips, just like it is for SB-E. These chips will almost certainly not be launching in June.
3. The chips for LGA 2011 are extremely expensive and offer nothing for gaming.
4. Get a Z77 board, not Z68 or X79. Put an Ivy Bridge chip in it.