The Silverstone PS07B, at about $84 shipped, is a far superior case, and will need no work or added parts. The included fans are good, the filters are good, and the filters offers are spaced a bit away from the fans, improving airflow and noise, compared to filters that go right on the fan mount.
The Xigmatek Gaia is $20 right now, at Newegg, and performs within a couple degrees of the Gemini (it's got a moderately quiet fan). That's $20-23 less.
The Hyper212+ is $30 at Newegg ($20 AMIR), and outperforms both.
You will not significantly reduce the cooler's noise with any Cooler Master branded anything. They're idea of quiet is being able to yell over it (not literally, of course ). If you want to reduce noise, without much hassle, or cost, just stick to Xigmatek and Arctic Cooling (there are better, but they are both good, highly available, and not too expensive for what they offer in the <$60 range).
You are spending too much for the case, HSF, fans, and filters.
CM Gemini HSF: $32.92 (w/o MIR)
140mm fan: $9.99
2x120mm fans $18.94
Rosewill Line-M: $39.99
3x120mm filters: $12
Total: $113.84+s&h (2 fans)
Xigmatek Gaia HSF: $19.99
Silverstone PS07B: $76.99
Total: $96.98+s&h (~$6.50 for the case)
The Xigmatek Gaia performs about as well as the Cooler Master Gemini II s254, won't need another fan for any reason, and is cheaper. The Silverstone case is a really good case. It comes with a tower heatsink support, removable back panel, and removable dust filters. The only cons to it are that it is not as sturdy as their more expensive cases, like the Kubai or Temjin, so it will produce some vibration noise that their others will not (for the money, that's nitpicking), and that the fans it comes with are 3-pin.
The Fractal Design Core series might work, too, but the side and top vents are completely unnecessary, and are really wasteful design, with dust in mind (why have a dust filter, then have more places for dust to enter, unless you put exhaust fans there, which will increase airflow unnecessarily?).
With the Hyer212+ or Hyper212+ Evo, you would end up with about the same total costs as now, but a better cooler (louder than the Xigmatek, but lower temps), better case, and still no need to buy case fans or filters.
--
OT: Toshiba business laptop? I think that's bile coming up (hard to diagnose problems are the norm...they just go bad after awhile). Lenovo, Dell, HP, and Fujitsu make good business notebooks, and have support presence in the U.S. (the biggest problem for Asus and Samsung models--not even official support either, it extends to less availability of parts on eBay and such). Avoid them in the future. Toshiba and Acer branded notebooks tend to be feature-filled for the money, but low quality (Gateways may be Acers, technically, but are categorically made better, IME).