SSDs
Plextor M3 Series 128GB current price is $139.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16820249014
SAMSUNG 830 Series 128GB current price is $159.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16820147163&Tpk=N82E16820147163
The Plextor has far better random writes, but the Samsung has far better sequential writes. I wasn't quite sure which one that you would want, so I put them both up. However, despite it's loss in sequential, the Plextor has a five star rating and the Samsung has a 4 star rating. I read all of the ratings and noticed that the Samsung's 4 star ratings are mostly because of stupid people, so it might as well be a five star, at least in my opinion. Despite that, I like the Plextor's random write advantage more and the Samsung is a little annoying because it has a bloatware program that needs to be installed in order to find out what firmware version it has (you must fully update an SSD's firmware every time you can, unless you know for a fact that the current version is good and don't know for a fact that the next version(s) is(are) good). You can uninstall the program after you check the firmware with it, but I still don't like that. The Plextor doesn't seem to have such a problem and it's a good $20 cheaper.
Other than the two trading off between sequential and random write speeds, the two are very similar drives with very close random and sequential read speeds. Still, Plextor has my vote on this one, but I don't know if you want the sequential write or random write advantage, so they're both here.
PSUs
All of these are average 5 star ratings with a minimum of 78% and all prices include shipping, MIR, and instant discounts.
Corsair Professional Series 750w 80+ SILVER current price is $129.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010&cm_sp=Cat_Power_Supplies-_-Spotlight-_-17-139-010
Antec 550w 80+ current price is $75.17
http://www.newegg.com/Product/Product.aspx?Item=N82E16817371016
Corsair Gaming Series 800w 80+ current price is $125.98
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139025
Corsair 750w 80+ current price is $135.98
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139006
Corsair Enthusiast Series 650w 80+ current price is $94.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005
I wasn't sure which one that you would want, but these are all five star rated PSUs. The first Corsair and the Antec have about 550 reviews total, the next Corsair only has 47, the next Corsair has almost 2400 reviews, and the last one has almost 1800 reviews. Excluding the Corsair Gaming series, these are all huge numbers, so any of them would be a great choice since they are known to have a very low percentage of failure. They all have the mid-range wattages that I'd recommend and decent prices, so take your pick. I'm kinda leaning towards either the Antec if you want to get the cheapest of them, or the first Corsair for the most efficient. Either way, the Antec is in no way skimping at all despite the lower price and any of them should be great.
As for the graphics card, if you already have a Quadro 5000 in one workstation, do you plan on keeping that workstation? If this one is replacing it, then you could just move that Quadro over, or sell it and get a cheaper card instead. As much as it doesn't help much, you already have it, so it might as well not be put to waste if it's not doing much good where it is. You could probably sell it for a lot of money, use some of that money to buy a cheaper card, and pocket the remaining cash for something else. If you still want the current workstation, then maybe you could sell the 5000 anyway and get two cheaper cards? Either way, if it's not doing much good where it is, then I think that you should do something about it. It's just wasting electricity if it's not doing much good.
Sorry it took so long... Life caught up to me for a few days and I kinda forgot afterwards. Better late than never, at least I hope so.