Time or money? What do you have more of?
That's mostly what it boils down to. You can build a reliable Hackintosh, but it
does require some time investment into researching drivers, hardware, installation procedures, etc. My Hackintoshes are reliable to the point where I no longer own an Apple computer (at least until they release a Macbook Air with 8 gigs of RAM! lol). But, I have spent a significant amount of time digging around to learn how things work and tinkering with my own systems.
So it's not really a quick-fix type of thing if you want a long-term solution (updates, patches, quirks, etc.). You can follow someone else's guide, but you're at a disadvantage whenever an update comes along if they don't update their original guide. So it's a time investment - if you're willing to dig in & tinker, you can build a pretty nice system and save some cash.
Personally I prefer Nvidia cards. I've had better experience with them in my Hackintoshes, although ATI is making some strides. Video cards is one of the most difficult areas of the game because it can be hit-or-miss even between versions of the same GPU from the same vendor. There's a thread starting on the GTX5xx cards over on Tonymac:
http://www.tonymacx86.com/viewtopic.php?f=15&t=28020
If you want a monster board, the eVGA SR-2 ($580) has pretty good support: (dual 6-core Xeon support, unofficial 96GB RAM support, etc.)
http://www.newegg.com/Product/Produc...82E16813188070
Otherwise at this point, I'd just go with a Sandy Bridge board. You can OC the crud out of them and they're pretty cheap - the i7-2600K is only $315 for a Quad 3.46GHz with Hyperthreading & 3.8GHz Turbo Boost.
For SSD's, I'd definitely recommend the OWC Mercury line, in particular their new Pro 6G line: (right side)
http://eshop.macsales.com/shop/SSD/OWC/Mercury_6G/
If you want crazy-fast speed, you can RAID them up. Barefeats got 8 of them up to nearly 3,000 MB/s:
http://www.barefeats.com/ssd6g05.html
Although I've gotten 5,000 MB/s on my DDR3 RAMdisk using this software: (useful for current photo/video projects, especially if you get that board with 96 gigs of RAM and can do a nice, large 60-gig RAMdisk or something)
http://eshensh.net/rdu/%E7%B6%B2%E7%AB%99/English.html
So...lots of options to play with. Think about where you want to spend your time - it can take awhile to get a Hackintosh perfected, and then the updates come & ruin everything, so it depends on if you want to treat it as a production machine or as a regular computer, if that makes sense.