I would never plug my amp or pedals into a outlet strip. I learned my lesson. I have a Furman pedal board, that includes a conditioned power supply. I have great wiring in the house and plug directly into the wall. My pedals all work off the board, and absolutely no hum! I did have an issue a couple of years ago, and I was getting an awful hum.
I tore my board apart and could not find it. I went to unplug my board and try another outlet in a different part of the house, and I saw my board was plugged into a power strip. The only other person in the house was my wife. She had decided to clean behind the couch in my guitar room, and had to unplug the board from the wall. She saw a power bar that I use for my stereo equipment, and plugged it back into that bar. I plugged it back into the wall and all was good again! She promised to not touch my guitar stuff ever again.
I really do believe that Furman really "gets it" when it comes to power conditioning. I think this is a subject with not a lot of information. There are a ton of guys who just put up with the hum for no reason.
I don't know if it will make a big difference if you feel your house wiring is suspect, but it won't add to it like a power bar will!
OH and I have the Furman SPB8 board. I think I got it from GC for about 200 bucks. You might want to look into that before you spend the 40 bucks on a power supply.
The Blues is alright!
Guitars: 1968 Gibson SG, 2005 Gibson SG Standard, 2006 Gibson LP Classic Gold top, 2004 Epiphone Elitist LP Custom, 1996 Gibson Les Paul Standard. 2001 Epiphone Sheraton II, 2007 Epiphone G400.
Fender Strats: 1996 Fender 68 Reissue CIJ, 2008 Squier CV 50s, 2009 Squier CV 50s Tele Butterescotch Blonde
Amps: Blues Junior Special edition Jensen in Brown Tolex with Wheat front, 65 Deluxe Reverb reissue,1970 Sonax reverb by Traynor, Avatar Custom 2/12 Cabinet with Eminence Legend V1216 speakers,
2008 DSL100 Marshall Amp , Fender Super Champ XD,Fender Vibro Champ XD
Effects and Pedals: Fulltone Fulldrive II, Fulltone OCD, Fulltone Mini Deja Vibe, Fulltone Fat Boost, Dunlop Crybaby Wah, Boss DS1, Boss DD20 Giga Delay, Boss TU2 tuner, Boss BD2, Ibanez TS9 Tube screamer, Zoom 505. Radial tonebone hot british.