i want to add a surround sound system. i have another post about setting a budget for it. once i set the budget, i need to decide whether or not to hire a pro to pick the components and do the install. intuitvely, i would think that DIY would provide me more flexibility in component choices, better components for the same price (with careful online shopping), and thus a better final product for the same price. however, i may not realize all that is involved and the professional expertise may be well worth it. i sure would appreciate any comments to help me decide!