I don't know much about the Orange Crush, but I've owned a G-400 and it's a decent guitar. I don't know what gear you have now (if any) but it's a step up from most introductory guitars. There's nothing about it that really stands out as being amazing, but there's nothing sub-par about it either. It's definitely worth it for the price.
The G-400 is good and the Orange is, as low budget practice amps go, pretty good. You can't really go wrong for the price.
"Make my funk the P-Funk, I want my funk uncut"
Quote by jambi_mantra
James, are you God?

Fender Highway One Tele
1985 Encore 335
Takamine EG523sc
Laney VC15
Vox V847
MXR M-108
EHX Q-Tron+, Big Muff Pi, POG
MI Audio Crunch Box
Yamaha DTXplorer DrumKit
Looks like you chose some good equipment there mate Epiphone are like Gibson's version of Fender Squiers, but they're like, 10x better and practically as good as Gibsons! Orange are just good in generall like people here have said. Go for it!