Re: Which Package to buy
What do you mean by Package? Do you want to simulate and synthesize your projects or only for project management and design entry?
If you're looking for a Design Entry/Synthesis tool...then Xilinx ISE and Alter Quartus II are good. These are only for FPGA's. If you want a good project management tool as well as HDL Editors, state machine editors, block diagram, code linting...etc..except compilation and synthesis...you can go in for MentorGraphics HDL Designer. When using HDL Designer..you have to link the tool with other simulation, synthesis and P&R tools..such as ModelSim, Xilinx, Synplify Pro.
HDL Designed also has CVS and Code linting and a host of other features...I suggest you check out the Mentor Graphics website for more info...