I do not agree solo mining must be bad.
Are people always more afraid of loss then thinking of possible extra profit? (afair studies say that yes, x2 more)
Look at it this way, assume 2.6 GHash solo.
Assume diff doubling each month (same affect as +30% but easier calculations)
You will on avg. get a block once per month.
You have 50% to get a block in 30 days.
(
http://www.alloscomp.com/bitcoin/old_calculator.php)
So in pool after a month you get 50 BTC, then 25 BTC, 12.5, 6.25, 3.12 = 96.8 BTC
after more month you would get close to 100 and then some pennies monthly.
So 100 BTC in 5 months in pool.
Solo, you have 50% chance to get in this time same 100 BTC or even 150 or perhaps 200 BTC.
Also you could get 250 or 300 is very lucky - but also you can get just 50 or even 0 if very unlucky.
Mining Solo is NOT less profitable at it does NOT mean you will get nothing - you may get nothing but you may also get much more then from pool, even +50% more is not that unlikely.
It is the risk of getting 0 BTC what scares people it seems.