Will Seasonic S12-430 work with a PCI-E video card?

Hi all, this topic might have been visited in other threads previous, but I couldn't find any specifics on my question after reading through a couple of other related threads.
My trusted Athlon XP 2000+ system finally gave in last weekend after almost 4 years, and I needed to build a replacement fast. I'm shooting to order everything by today so that I can put it together this weekend. Rearching since Monday on many trusted sites and I've picked the majority of the components but I'm still very stumped on Power Supply. Here are what I've picked.

AMD Athlon 64 3200+ Venice 939 socket
Asus A8N-SLI Deluxe
eVGA 6600GT PCI express x16
Corsair XMS twin 512MB DDR400
WD WD800JD 80GB 7200 rpm HD

I'm going to salvage the Lian Li case, 2 more HD, 1 DVD-rom, 1 DVD-RW rom, and the SB Audigy sound card from the old computer. (I suspect the old Asus MB is what's broken)

My question is since I plan to use the pci-e video card, can I use the seasonic S12-430? I've read some posts that says people didn't mind not having the 6 pin connector, because they can just use a adaptor or 2 HDD connectors. I guess not having done this in a while and don't have all the parts in front of me, I want to make sure that it is in fact doable. And is so, what is this connector/adaptor and where can I get it?

The seasonic website says that they don't ship the 430 with the connector because pci-e vid card are going to show up mainly in SLI rigs which will require a power supply at least 450W. I don't plan to do a SLI set up since my days of playing WarCraft are no longer here, but I want to stick with a pci-e video card to keep that game playing option open.

I really don't want to go up to the S12-500, because it's way more expensive ($120 on newegg), my original budget for power supply was around $60-80, I rather spend the extra bucks on upgrading the CPU to a 3500+ or 3700+, or getting more memory.

Or should I get one of the Antec TP II 450W or SP 2.0 450W, which are in the $60-80 range? My hesitation here is all these reviews about Antec being unreliable lately. Besides the Seasonic S12 has much better reviews accross the board both on noise level and efficiency.

Thanks!